Tbi swap wiring

Tbi swap wiring

I love wiring and challenges (and The first thing you will need to do is remove the old fuel injection system from the intake manifold up. Since then we have converted many TBI harnesses into TPI harness so one can use a TPI in its place. 5 out of 10 Time to install: A Weekend Disclaimer: The Ranger Station. In dmar MEFI 1/ MEFI 2 TBI Engine Wiring Harness. An EFI System so easy and powerful you’ll think it’s alive! Simply bolt it on, feed it a few basic answers and let Holley LS EFI take control of your ride! LT1 Wiring & LT4 Wiring LS conversion wiring harnesses are awesome. 3L TBI ENGINE SWAP. GM Throttle Body Injection 1987-93 LO3 (5. TBI is a fuel injection system that uses a pair of injectors mounted in a single housing that is mounted and functions much like a carburetor, except that the injectors replace the venturis, jets, air bleeds, fuel bowls, and floats. TBI Fuel Injection Conversion using a GM TBI EFI system! One of the most popular EFI conversions to older Chevy engines or any engine for that matter is the GM TBI system using the 1227747 ECM. From Carb to EFI on just a fistful of dollars… Updated 3/3/09 – Added dyno chart showing comparison of readings taken on old vs new dyno. Detailed dives into the electrical system (and how to use the factory wiring harness), fuel  Oct 16, 2018 you're probably going to have to cobb something together because no one goes from the efficiency of tbi efi to grandpas carburetor , that's like  The most basic things you'll need to convert from TBI to a carburetor is a carb and If you're using a roller-lifter camshaft, then you're going to have to swap out  Your Source For LSX Conversion Parts. I think a set of smallport Vortec Bowtie heads( these smallports have the conventional exhaust port and will work with ANY header or manifold ports) with either the GMPP TBI/Vortec conversion intake or an Edelbrock Vortec Performer RPM airgap intake with a TBI conversion plate to attach to the TBI injection unit with some 65pph police car TBI For decades, GM’s Gen I small-block was the go-to engine swap for anything that needed cheap, reliable power, but its reign is coming to an end. 4 Engines 1985-91 (w/o the 4L60-E or 4L80-E transmissions): Our harness upgrades to the 1988-90 CK truck computer. 91 Chevy c1500 Auto 5. Installing Chevrolet & GM Engines into the Jeep YJ Wrangler. Warranties This harness is covered under warranty for the lifetime of the original owner against defects in workmanship within the wiring harness only, not time, or any damage in result of defective workmanship of the wiring. 2010 to 2011 Camaro L99 - LS3 Information, Wiring, and so on. Speedway accepts full responsibility for the accuracy of our listings and product representation. Brand new LS1 swap wiring harness for a Chevrolet C10 truck. 8-6. My computer keeps burning out, leaving me stranded and I have had it. Hi guys. The ECM are remanufactured. GM did a good job of keeping the TBI harness self contained for the most part. I used a modified tpi harness to add efi to my chevelle. i have come across a 305 TPI out of an '86 Camaro for $600. What grouping or type of intake should I be looking for? Engines covered: Pre-Optispark small block Chevy V8s with TPI or TBI injection and HEI ignition with electronic spark timing (seven or eight pin HEI module) Much of this article will apply to other 1980s era GM cars including injected big blocks and even fire V6s. The 8-pin module has two pins for the distributor pickup coil, P and N, a connection for power, "+" (hot in START and ON), a negative coil connector, "C", a ground, and four wires that connect to the ECM. Objective of this Article This article will walk you through the process of installing a MegaSquirt EFI system on a classic carb’d vehicle attempting to go the least expensive… Chevrolet TPI & TBI engine swapping [Mike Knell] on Amazon. Please note: more often than not you will need a new prom chip calibration for your ECM (electronic control module) with a new harness. simple and easy! OEM-Quality Replacement Wiring. I jumped on eBay and starting bidding. This page is for information about GM Tuned Port Injection EFI swaps. 99 $ 17. For example, if you have an 89 TBI Camaro, you would want an 89 TPI Camaro harness. 7L) injection engines. 3-liter V6, as well as a 454 (7. We show you how to do a homemade TBI conversion for $904 on Leonard Slebodnik’s 1977 Corvette after his Quadrajet carburetor became gummed up. Swap Specialties 24x Standalone wiring harness for GM Gen3 4. One of the most intimidating parts of doing an engine swap is the wiring especially if it is a fuel injected engine. with all the wiring involved, and if your really looking to do it, your best bet would be to gather some more parts and do it up nice. I have a 94 C1500 4. Tbi swap wiring harness thank you for visiting our site, this is images about tbi swap wiring harness posted by Maria Nieto in Tbi category on Jun 10, 2019. The TBI was fine when it worked, but on something like this that might be subject to water and mud and sitting outside a lot, perhaps simpler is better. Before you start I will warn you this is a major change to your car and will take a lot of work and time. 0, 5. Thank you. The beauty of the TBI systems used on the small block Chevy and the 4. Wiring for it must Find CHEVROLET 5. Question is, if you were doing the swap, whose wiring harness/kit would you use, there are lots out there and all claim to be better than the others. You will also find it is shared with another harness that simply unplugs from the firewall on drivers side and seperates from the lighting I have a 92 camaro z28 305 tbi and I'm looking to do the same thing. I used a MSD 6 off road ignition box and it made the wiring very simple. All harnesses built by Fuel Injection Specialties are configured to plug into OEM components at their stock locations. GM TPI Swap. com This is a basic TBI harness for all engines using ECM 1227747 and 1228746 type ECM-many others can be used. $17. 3 engine with 4L60-E Tranny and wiring harnase 2. TBI 350 Installation - Land Cruiser Tech from IH8MUD. A carb will also greatly help me clean up wiring, as my wiring harness is much longer than needed so it sits bundled up because I really don't want to cut and splice 2 feet out of 20 separate The most useful was Chevy Thunder, which is also a site that will sell you some of the unique items you will need for doing this type of swap. In order to do such a conversion you will remove your ecm and wiring harness from the pass side of the truck. The wiring harness is all made with TXL wire which is water oil and grease resistance, and all in convoluted loom (split loom) which makes for a good looking system when you open the hood. I ended up with a complete system from a '91 305 Camaro for about $140. What we usually aren’t able to see however, is the details of the completed swap. I have wiring diagrams for the 1227747 TBI computer system. 8L Chevy TBI Swap on to Ford 2. I downloaded several pinout charts and wiring diagrams and began studying every detail. 3L and want to change the engine to a LM7 or LS1 power-plant, Speed Scene Wiring will marry the two harnesses together to make one. Searching for information concerning Chevy 350 Tbi Wiring Harness Diagram? you are right here. Shop Booklet Sizes Car Manual Wiring Harness You WILL need a wiring harness to operate the TPI system. At Fuel Injection Specialties, we build custom wiring harnesses that will simplify the installation of your GM fuel injected motor. GM TBI WIRING GM Truck Throttle Body Injection 4. com. I know I can remove the rear o2 sensors. These harnesses are  The beauty of the TBI systems used on the small block Chevy and the 4. C E30 E36 Engine Harness Adapter Swap All exchanges need to have reshipping charges included. 07-22-12 01:31 PM - Post# 2250904 Whats up chevytalk. What I would like to know is if anyone has done the swap from the tbi to an efi setup like the Holley terminator efi, msd atomic efi, or any of the other systems that are built to basically bolt onto a previously carburated engine. com Staff, nor the original poster are responsible for you doing this modification to your vehicle. Enable starter relay for bypassing VAT Vehicle Ani Theft on Camaro/Firebird. 3/6. We also have a device that will allow you to delete the VSS circuit. 3 harness can be used but with with a different ecm. be mounted below the tank. 1985-1992 Throttle Body Injection Wiring Harness Installation. 2L Truck & Corvette, Camaro Direct Injection Small Block V8. The item “Speedway 85-92 Chevy TBI Swap Fuel Injection EFI Engine Wiring Harness 7747 8747″ is in sale since Wednesday, April 08, 2015. Everything is hooked up except the plug that comes off the dash  Jan 2, 2009 Note that I have not actually done a TBI swap yet - this page exists to Wiring Harness, $70, CraigsList, From 1989 Suburban with a 5. and i cant just swap - Answered by a verified Chevy Mechanic carb to TBI simple swap. Used for a tbi engine swap into older truck. The 122786 ECM used in Camaro and Caprice. The generous YJ engine bay allows for a comfortable, clean fit for GM Small Block V6, V8 and even Big Block V8 engines. The TPI is controlled by Megasquirt II using a MSD Pro Billet Distributor. All harness kits include TXL high-temperature, color-coded and labeled wire with straightforward instructions for easy installation. This harness will also work on an `86-93 4. tpi distributor wiring issue Technical Help. 5. Complete with the wiring for emissions and VSS. 0 TBI I put a 350 TBI engine in it and the tps sensor are different plugs. Does anyone know how to easily swap to a carb system? Again, the only purpose for this is to bypass the electrical issue, not for power gain. 1998 to 2002 Camaro/Firebird harness Wiring Info-New PCM Pinout info specific to 98, 99-02 F-body. Painless Performance GM Fuel Injection Wiring Harnesses make a tough job easy and they are designed directly fit the factory engine control unit. Welcome To The New HowellEFI. $439. Get it as soon as Wed, Jun 12. 3L Chevy Motor Swap – Wiring Harness . 3 V6 is that the systems all work basically the same and GM has kept the wiring the same so there no real need to have the exact wiring diagram for the system you are installing. My headers will need a bung welded on for the O@ sensor as well as the wiring found haha I am contemplating going to a carb or did I do the right thing with TBI? 1. Use this handy LT1 swap guide when you are upgrading your TPI 305 engine and putting in a v8 swap 8, LT1 7, TPI 5, alternator 2, wiring INJECTOR WIRING HARNESS. <c> 1985-1992 Throttle Body Injection (TBI) Standard length harnesses are 54" from the back of the engine to the PCM connectors. I usually have to New Stand Alone Engine Wiring Harnesses . Only at www. First I start with a new Fuel pump, STOCK 75lph TBI fuel pump will only support about 230hp before the fuel pressure drops like a rock. What it Covers. Michigan Motorsports TPI TBI HEI Small Cap Distributor Coil Wiring Harness Fitment for 1987 thru 1992 350 Camaro Firebird. Converting your 1990-92 Camaro TBI To Speed Density TPI This conversion was done on my 1990 Camaro RS 305 TBI, my goal was to make the conversion as clean and as easy as possible. One of the most enjoyable Jeeps to work with today is the Jeep YJ Wrangler, as built from 1987 to 1995. I started out with a partial TPI. the shop who did my swap while I was deployed didnt put in an O2 . Completely plug and play with a startup guarantee - Made in USA. I would have purchased my wiring harness from them, if they had been selling it while I was doing my swap. Pictured is a TBI complete system for a 2bbl Chevy V8. i am burning/leaking oil and not sure how/where (could be an easy fix, not sure), A/C compressor doesnt work very well if at LT1 was installed with a stock 1995 PCM and wiring harness I modified for the swap. I am going  I have a 88 s10 that was an original 2. where to start with GM TBI conversion? trying to run TBI? It will have a 4 wire connector to the wiring harness in addition to the three wire that goes to the This particular photograph (Tbi Swap Build Thread – Page 3 – The 1947 – Present Chevrolet) preceding is labelled with: chevy 350 tbi wiring diagram, . 0L throttle body injection. 99. 4L) engine. . Though it is possible to replace the injectors and throttle body, and to reprogram the computer, many find it simpler to "down-grade" to a carburetor setup. So it is Their diagram doesnt add u with their notes. I also got a ballast resistor from the parts store (needs to be 0. 3 V6 is that the systems all work basically the same and GM has kept the wiring the same   I am going to use the intake (& all the hardware),throtlebody,stock wiring harness and all the other things you need to do this swap. Speartech is your LSX wiring harness swap specialist. 6 ohms). 7, and 6. All thing wiring, fuel lines and vacuum lines. 3 liter LS swap into a 1994 Chevy truck from user AGearhead4Life. 0 Wiring Harness Info) and a few other decent writeups (GM LS Engine Swap Wiring You Can Do at Home) I decided that I had to do it. 3 / 6. 8L to 350 TBI Swap Questions (Electrical, Engine) by jester8798 » Fri Jun 14, 2013 11:55 am Hey guys, I've hopefully located my donor engine but the owner doesn't have the computer and wiring harness for it. in the late 90s so they must be adaptable to some degree. This includes all wiring that is needed by the computer to run and control the fuel injection system. A TBI harness can be modified to operate a TPI, but if you are converting from carb, or don't want to mess w/ converting the TBI harness, you will need to get a TPI harness. TPI is a fuel injection system that uses individual injectors for each cylinder that are mounted in the intake manifold and usually ends up looking much different than a traditional carbureted setup. Jul 28, 2006 TBI - How to: 305 To 350 swap. you can check out the wiring schematic on summits web site for what hooks up to what. 2001 Vortec 8. Because of this, there are serveral companies that specialize in making simple harnesses for fuel injection. This harness is designed to be a complete wiring system for the fuel injection system on General Motors throttle body (5. If you don't see the wiring harness you need listed below, please call us - we have harnesses for almost all Chevy V8 and V6 gas engines, and for all LS-x based combinations from 1998 - 2017. its the wiring that gets most people. There will be a lot of extra things, don't worry about them now grab it all as whole as you can. There are many others that will do the same thing but the 1227747 is most well known and documented and will be the basis for this article. GM 2. 0L Engines have proven to be the best harness on the market today. 99. 0L and 5. not really, leave the jeep harness, you don't mess with any of the gauge wiring, and the ignition and starter wiring is all that really needs to be changed. On a Firebird or Camaro TBI, this if very easy, TPI takes a bit more. 7 and 6. Wiring Harness Fuel Injection GM CFI/TBI Engine Swap Universal. and i cant just swap - Answered by a verified Chevy Mechanic. I dont even know where the wiring for the sensor shoudl be if he cut it ect. To determine most graphics throughout Chevy 350 Tbi Wiring Harness Diagram images gallery please follow this specific url. GM’s Gen III V-8 debuted in the new-for-’97 How do I convert to carb from TBI? I have a 454 1994 and would like to get rid of the brain to have a stand alone engine and trans. I've done quite a few TBI harnesses, so I figured this wouldn't be much different except for more wires and sensors. 8/5. 8 truck and i swapped it to a tbi 350. Generic TBI Fuel Injection Block Diagram & Acronyms Individual Components and Their Function We have covered <c> the block diagram and acronyms and are now ready to take a look at the <c> function of the individual components, and some general information about them, and how to procure them. We are not Does anyone have detailed wiring schematics or diagrams for a 93 TBI 350? I believe the motor came out of a 2WD pickup with the 4L80E. 4L/454 Fuel Injection System Wiring Harnesses and get Free Shipping on Orders Over $99 at Summit Racing! CFI/TBI, Engine Swap, Extra-Long Harness While it works fine for stock applications, the fact is that General Motors' Throttle Body Injection (TBI) system is a nightmare for modified engines. Notes Designed for engine swap vehicles equipped with 1982-93 TBI from a 5. etc etc lol. Shop with confidence. After reading all the tech on LT1Swap. This page is for information about GM Throttle Body Injection EFI swaps. We see a lot of LS swap projects nowadays on YouTube, like this video of a 5. 0, and 4. If you have a stock TBI fuel injected truck, with a Vortec 4. 8 / 5. 7 TBI to 5. 2. The motor is old an tired and the wiring is just completely molested. Our Engine Wiring Harnesses change that. GM uses most of the same sensors on a throttle body as they do a tuned port engine. Comes With Complete Instructions for installation. 3, 5. Find great deals on eBay for tbi engine harness. This was my very first fuel injected swap. Completed TPI/TBI Engine Swap: Stealth Conversions. The device replicates a signal to the computer; the computer still thinks its receiving the correct pulse. 8. This page is dedicated to the owners of these vehicles equipped with GM's dual point fuel injection (model 220 TBI). When I installed my 1991 TBI-350 motor, I eliminated a few sensors but did Wiring Harnesses for Fuel Injected GM / Chevrolet engine swaps - Stand Alone Wiring Harness for Gen I. Once you have it off, clean the surface of the heads and lifter valley edges of all gasket material, taking care that no debris falls into the lifter valley or down the ports. Or you are a trainee, or perhaps even you that simply wish to know about Chevy 350 Tbi Wiring Harness Diagram. This is the most confusing part of this project… there are SO many wires in the stock motor wiring harness that came with Chevy tbi standalone wiring harness together with 1991 s10 wiring harness 87 s10 wiring diagram painless wiring tbi harness diagram wiring a 4 3 tbi in a jeep cj s10 wiring harness diagram gm tbi wiring -diagram tbi fuel injection wiring harness chevy tbi wiring- diagram tbi diagram chevy coil wiring 1987 chevy tbi ignition wiring wiring harness diagram gm wiring harness diagram 1987 chevy tbi I know there are posts with wiring schematics for TBI on for example 1986 305 TBI GMC Pickup, somewhere Plus cars for swap and sale & yes, I once tried a frame Hey i did a chevy 4. You can find the Niva wiring diagrams on line for free. Mike goes on a few rants of the do's and dont's of how to wire correctly. 99 - PAINLESS WIRING Tbi In this episode we start to finish up the TPI to TBI conversion. If you are going to spend the money to update your ride to EFI, spend it on a system that can grow with you in the future. The complete TBI system comes with all components needed for a closed loop system except for air cleaner, throttle cable/linkage, and fuel lines. Compare The Facts. Only the 90-92 TPI harnesses will require a wiring alteration, only 2 wires. 5 Iron Duke TBI Swap. 0 / 8. 3 Vortec Swap have a 95 Chevy Silverado 4X4 that has the 350 TBI engine and I recently purchased a 5. INJECTOR WIRING HARNESS. Painless Performance Fuel Injection Harness 60101. Official Site of Painless Performance, American Made wiring harnesses for your hot rod, street rod, muscle car, off-road and everything in between. 7L and  Speedway 1985-1992 GM TBI Engine EFI Wiring Harness made by Speedway Motors, for as low as $319. Wire it once and wire it right with Painless. Our new content-rich platform now features a blog with updated tech information, tips for successful stress-free installation, in addition to sharing customer experiences and the latest industry news. i am wondering if it would be worth it taking out my 305 TBI and putting the 305 TPI in. hotrod. Is my best plan to keep the 94 harness and ecm, and buy the right memcal? ,,, or can I swap in the 305 harness and ecm. Use this handy LT1 swap guide when you are upgrading your TPI 305 engine and putting in a v8 swap 8, LT1 7, TPI 5, alternator 2, wiring All the computer related wiring comes through the two and a half inch hole on the passenger side of the firewall by the exhaust manifold. Basic connections are standard but it is easy to customize one for your needs. Instead, I bought one from Painless Wiring. 7L) engines. 7, 7. I am preforming this swap and honestly I dont want to pay 700 dollars for a stand alone harness when I have the complete harness already. I have everything hooked up and the motor will run if I dump gas in the throttle body. "I used the existing fuel lines, ignoring the return line and the purge line, since without the TBI and EEC, there is nothing to utilize or operate them. My recommendation is to keep the 4. Quality of Construction This harness is constructed using OEM quality wire for superior reliability and long term use. Fast forward, I'm old time traditional guy and have not swapped any TPI motors, not big into EFI. 3 swap in my 89 yota, and i went carburated (holley 470 truck avenger) for simplicity without TBI components wire harness, ecu, sensors, etc. THIS HARNESS IS FOR A CHEVY 4. All ignition and fuel control comes from Megasquirt II. I have a 1992 chevy rcsb 350 with the outdated tbi on it. You can also find other images like images wiring diagram, images parts diagram, images replacement parts, images electrical diagram, images repair manuals, images engine diagram, images engine scheme diagram, images wiring harness diagram 94 Chevy 350 TBI Conversion to Carb? I have a 94 Chevy 350 w/ TBI and want to convert to carb. it still runs and operates but im going to be pickin up another tbi 350. #1023103 - 04/20/15 02:57 PM 86 TBI fuel pump wiring, where does it go I finally was able to get my white Monte that I started a TPI swap on 6 or so years ago out It will be easier if you swap a harness from the same year and make vehicle, as it will plug right into the dash with no changes. I used a haynes book for the tbi wiring, but diy-efi has good stuff too (same as some of the haynes diagrams) In this small upload, I am explaining how simple it is to convert a TBI sbc engine into a carburetor ran engine. com up your stock wiring harness. (2014+) swap wiring harnesses for General Motors 4. You could be a specialist who wants to try to find references or address existing troubles. i just picked up a 92 silverado 2500. everything you need to know - Ok, my ESC module to injectors to hedders to wires to plugs, etc. 3/auto and Im swapping in a 90 305/5spd(cause it was cheap) for my daily. 8L Chevy TBI Swap Lets start with addressing why you would want to do this as opposed to other TBI writeups on other sites: Complete engine wiring harness I was curious if anyone had any pictures or a write-up on what to remove from the factory l31 harness for stand alone operation. Whether you stick a turbocharged LSX engine between your frame rails, or put nitrous on your big block, the Terminator™ ECU can grow with you, unlike the competition where you are stuck with an entry level ECU. TBI Wire Harness | TBI Wiring-The wire harness above is for the application years 1986-91 pre 4L60E. The Wiring Specialties Pro-Series LS1 wiring harness is a Brand New, Tucked, Plug and Play harness that was designed and tested by our in-house experts specifically for any classic Chevy NON-EFI chassis or race car with an LS1 engine swap. 5L. Chevrolet K5 Blazer 4x4 (Full Size): i did a tbi swap on a… i did a tbi swap i did a tbi swap on a 1984 k5 blazer using all stock computer/wiring harness/tbi unit and i have no power to the fuel pump, also no power to the ecm b fuse. I recommend upgrading to the 1996 Vortec 155lph fuel pump which can support up to 450hp and plugs right into a factory TBI sending unit. With a TBI V8 swap a 4. Most of the time, the owner of the vehicle is the one completing the swap. Original Poster(s): Cammeddrz and RICO9 Difficulty: 8. The wire colors are the same as the factory wire colors for car and truck TBI injected engines. I'm helping a friend swap a 91 350 TBI from a half ton into a 92 YJ that had a 2. 1 Vortec, and Direct Injection GM car, truck and SUV engines. It included the TBI unit, the intake manifold, the ECM (computer), the distributor, the wiring harness and most of the sensors. 3/30/2013. TBI Wiring Harness Conversion ! First you need to go to junk yard and pull the engine EFI harness or complete system if you can. 2004 Pontiac GTO Wiring Harness Info - Wiring harness info specific to the 2004 GTO LS1 They are available in most any shop manual of the era and in several places on line. Painless Wiring makes the conversion from Carburetor to TBI real easy with there fuel injection wiring harness and a parts list of everything you need to make the switch. 8 - 1. This post is just going to show you how easy it is to pull apart a stock wiring harness and make it ready for the swap. 0L) and LO5 (5. Was a great running car prior to it getting T Boned, minor injuries but insurance totaled the car. We offer LSX swap harnesses for all LSX engines including LS1, LS2, LS3, LS6, LS7, LSA, LS9, Gen 5 V8, LT1, LQ4 TBI Fuel Injection Conversion wiring using a GM TBI EFI system! reversed on the 454 vs the SBC so swap those 2 pins if using a 454 TB with the bolt on IAC. i would tell you the year of mine, but it doesnt really matter since the block is a '77 and the intake and heads are '89. 93 TBI™ swap to 96 vortec . Two fuel injectors mounted on top of the throttle body inject fuel into the motor. Howell EFI TBI Kit Overview. Gen II, Gen III and GenIV small block V8 applications - Throttle Body, Tuned Port, LT-1, LS-1 and Ls-x Vortec Fuel Injected engines, including LS2, LS6 5. *FREE* shipping on qualifying offers. We hand build every harness to fit exactly what your project needs. One of my customers sent me these wiring diagrams for his swap in a 2000 S10 Blazer. 7L or 5. Painless Wiring 60124 Harness Distribu Find great deals on eBay for tbi harness. '62 Impala Page has a lot of info on my LT1 swap. VSSB Wiring diagram for those messing with one. The 16197427/16196395 TBI PCM system . and i AM going to do a carb swap so plz no trying to convince me otherwise. put up by means of wiringforums in August, 29 2017. com (Vortec 4. 8, 5. GM TBI Swap. It's mounted in there and were now getting to the task of wiring. 7L/350 Painless Performance and get Free Shipping on Orders Over $99 at Summit Racing! Find CHEVROLET 7. Most aftermarket books showing the ignition systems should have a decent representation of the ignition wiring. PSI specializes in the design and manufacture of GM Standalone Wiring Harnesses for LT1 and LS Engines and  TECH ARTICLE LS Swap into 88-98 GM Truck We have always wanted to build a 88-98 The earlier 88-95 trucks with the TBI engine used a low pressure fuel . Usually the terms "Fuel Injection" and "Simple" don't appear in the same sentence. Click on any of the pictures for a larger printable version. Typically, technical support is limited to the customer with only a harness purchase due to the complexity of variables we have no control over. Pretty much what I'm trying to figure out is what are the basic things I need to swap from tbi to carb I plan on using the factory fuel pump GM TBI Wiring The GM TBI system I'm installing uses an 8-pin ignition module. com, The Ranger Station. Some of the components shown above may look different from what will be included with your kit. 3L computer system which we can flash with the correct V8 programming ($200) and then just alter the wiring for the injectors. I use a wiring diagram from the TBI donor vehicle and the wiring diagram from the vehicle I am installing the EFI into. 1L Info. tbi swap wiring

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