We are a full service swap conversion online parts company. This kits includes the tuner program, ecm definition file, burn2 programmer, flash memory, and required adapters. I am not familiar with other software or other engine management systems. Hey guys, i like several others am trying to tune my 96 lt1 camaro with a 24x efi connection. This engine control module ecm programming harness is to be used with any of our benchforce powerblock switch assemblies to reprogram lt1 obd1 ecms outside of the vehicle requires a programming interface cable that communicates obd1 through. Lt1 24x 411 pcm conversion all of us please step inside.
Note the correct tire size and gear ratio must be provided for the correct shift point and speedometer calibrations. Gm lt1 lt4 obd2 pcm programming harness efi connection. Gm lt1 lt4 obd2 pcm programming harness efi connection, llc. Oct 06, 2017 this time on spptv we take a closer look at hp tuners, and what it is capable of doing for you and your hotrod. Gm computer reprogramming ecm tuning gm programming. This is a very similar process and if that is successful, then the programming should also work fine. This is the electronically controlled transmission. Concerning a stock enginedrivetrain, a custom chippcm program is going to offer very little over the stock programming as far as performance is concerned, unless you have one of the newer systems 1988up, in which case lowering the coolant fan turnon temps, increasing top speed and rev limiters, or altering electronic transmission shift. Feb 01, 2010 the key components that allow the latemodel sbc and lt1 to run using an ls1 pcm and ignition are.
The images i have for programming the flash with an eeprom programmer are good enough to get the pcm talking again, but they are not going to be able to support driving the car. Recalls are another reason your pcm may need to be reprogrammed. Before programming the pcm, make sure you can successfully read the pcm. Most of the time they go out within 48 hours gm class ii bricked pcm.
Removal of vehicle antitheft system vats disable emissions rear oxygen sensors. The 1993 camaro corvette lt1 pcm 16159278 is an oddball. Most all stock enginetransmission swap applications i would not need to do factory vin programming. Most times they go out the same day gm can ecm repairs may take up to 5 business days. There are other styles of connectors, but the 12 pin obd1 connector shown above is the most common. For what you want to do to the pcm, it is extremely easy. Ls1 pcms function very similarly although some of the variables and tables in lt1 edit work differently or are measured differently. Custom gm pcm programming lt1, ls1, tpi, tbi, vortec, v6 tuning. Although this is possible they feature two 28f512 plcc eproms they speak aldl.
For those of you using the 94 and later lt1 engines with the flashable pcms, you will only require software from tunercat or lt1edit as well as an interface cable. First, you need to ask yourself if you are planning on keeping your current powertrain configuration. Dyno tuning street tuning we can dyno and street tune almost any american domestic car, as well as nissan gtrs, evos, subaru wrxs and some euros. In addition to wiring harnesses, you will find other components and kits for retrofitting older vehicles with these powertrains including pcm programming, fuel pump kits, engine sensors, extension harnesses, replacement gm connector pigtails and a complete line of hardware to complete your conversion needs. Automotive performance tuning services ecu and pcm. Check out flashbased factory pcms with gen ii lt1lt4 and gen iii ls1, featured in the 2007 april issue of gm hightech performance magazine. The computer at view fills the application years from 199699 ck vortec engines 4.
Under no circumstances should you interrupt the programming process once it is started. Many of these ecms support being reflashed over the aldl interface e. The following are recommendations for the successful programming of your pcm. We offer benchtop programming harnesses, or off board programming harnesses for popular gm v8 pcm ecm tcm applications including. Mar 01, 2006 the first step in programming is to shut off all screen saver and power management functions. Most applications tend to run in the full emissions category.
Tuning software and equipment includes instructional photos, checklists, and stepbystep instructions on upgrading to the gm gen iii lsseries pcm, ecm, electronics, and powertrain control systems. Gm lt1 obd1 pcm programming harness efi connection, llc. Holden 2 honda setups 1 hardware installation guide return to moates webstore. The obd1 tuner program is a general purpose ecm calibration editor that allows you to make a wide variety of calibration changes to your vehicles obd1 ecmpcm from an easytouse windows arrangement. When you stomp on the gas, most of you know the pcm commands wot, or wide open throttle, operation. Modified fuel, spark tables and timing compensation at all areas of throttle angle. Automotive performance tuning services we offer a variety of tuning services which cover a wide range of automobiles. Carputing ecm editing software gm hightech performance. This lt1 lt4 obd2 pcm programming harness requires passthrough harness.
Once its talking, you will need to reprogram it with a known good lt1 image if you are making a repair. Hp tuners 101 beginners guide gm ecm tuning overview. The pcm for this swap is the 411 lsx pcm used in camaros and corvettes. While this lt1 obd1 ecm programming harness is compatible with all lt1 obd1 ecm equipped vehicles listed above, there may be many lt1 obd1 ecm service numbers. Tuning, looking to purchase a mail order tune from us. Eehack is a free program designed to do interesting things with the datastream of your 19941995 gm lt1 engine. The lt1 edit software will allow you to datalog and change or delete anything so if your not careful you could trash the ecm. Once the software folks get this info that you provide they make a corresponding copy of the edit program that can only be used with that ecm. Each cable is fully tested before its shipped, using one of our benchtop programming harnesses and a pcm. The maintainer of tunercat is a very capable bin hacker, and has discovered many of the parameters now known to the lt1 tuning community.
Lt1 pcm tuning obdiobdii pcm tuningprogramming service. I checked the injectors with putting my finger on each one while car running one side of. I have a 1996 lt1 camaro obd 2 and i was wondering if anyone has or knows of any cheap or free tuning software available. This includes programming for any stock engine application listed above. Comparing gen iii controllers includes instructional photos, checklists, and stepbystep instructions on upgrading to the gm gen iii lsseries pcm, ecm, electronics, and powertrain control systems. This is the only software package available for editing the 19941995 gm 6. Download free download ecu tuning software real advice. The programs available provide smoother shift or harsh depending on the request. Lt1 was installed with a stock 1995 pcm and wiring harness i modified for the swap. It requires you to purchase your own tuning kit aldl cableconverter box, chip burner and chip for chipbased ecms, tuning software, and datalogging software, in order to let me tune for you through email. Start with the basics, like removing the skipshift for you sixspeed owners, or accommodating for the larger wheels or different rear gear ratios youve installed. For purposes of this guide, ecm means engine control module, powertrain control module pcm, engine computer module ecm terms will be used interchangeably to mean the same thing. Obdii vehicles are not currently supported by every editor.
This list will ignore obvious enginecam specifics that should be set with a wb and focus on those things that are ls1 lt1. Pcm reprogramming services i will reprogram pcm, ecm, tcms for engine swap applications. This includes removal of antitheft or vats, changes to fan on and off temps, injector part number, segment swaps for 4l60e to 4l80e conversions. As for programming pointers mikeod and scott knight are valuable assets and can provide direction. Select your vehicle from the drop down menu to get information on pricing, gains, and availability. Programming interfaces for dpsls1 non can, gmt1, tunercat obd2.
When working with the 9495 lt1 cars, the update to the tuner program allows onebutton access to reading and programming the pcm. Reprogramming the lt1 and l99 for 19941995 obd1 cars. Vehicles supported include 199397 lt1 and all 199620 trucks, camaro, firebird, corvette. Its intended both for beginners and advanced users, and focuses mainly on tuning. The tpi is controlled by megasquirt ii using a msd pro billet distributor. The pcms used in these cars were flash based like the lt1 pcms so they are read and reprogrammed by connecting to the aldl connector. Surface mounted components on a double layer commercially manufactured circuit board. Also, unique and that makes this project possible, and found in the 2002 chevy express van the 411 pcm in this application uses a special 4x operating system. I have some drawing for a 94 that have references to the existing lt1 pcm as well as where they go on the 411 pcm. Can someone tell me if there is a difference between the pcm in say, an automatic 94 camaro and one with a 6speed, other than programming. Psi programming includes correct operating system and the following. The ecm service number should match the vehicle service calibration to avoid potential damage to the ecm.
Tunerpro is a software package designed for the diy bin hacker. It uses a special tune to allow the old style 18436572 firing order and one coil ignition setup. With the mouse in a clear spot on the desktop, right click the mouse and select properties. In addition to wiring harnesses, psi carries holley products, vintage air ac, dakota digital gauges, hptuners and pcm programming, fuel pump kits, engine sensors, extension harnesses, replacement gm connector pigtails and a complete line of hardware to complete your conversion needs. Some 199495 cars have the 16 pin obd2 connector shown below, corvettes, camaros, and lt1 cars among them, as well as newer australian holden and commodore. The comprehensive software allows editing of fuel parameters, top speed and engine rev limiters, ignition. Now, you need to test the pcm to make sure it wakes up. We are dedicated to tuning your vehicles engine computer to attain maximum performance and the best drivability possible while keeping the powertrain reliable. Jet performance dst tuning software for latemodel gm. Find great deals on ebay for tuning software in other diagnostic service tools. The first step in programming is to shut off all screen saver and power management functions. Just get the part number of the pcm obdi, and find it.
The tuner, rt tuner and winflash programs have been updated to add the read and programming capability for these cars. The only reason i am telling you this is, depending on how much you spend for a tune, you might be close to breaking even doing it yourself wthe software. If you are using your current tune as the starting point, use winflash or your tuning software to read pcm. If you need further references for sources pm me and i will share who i have used. Since chevrolet is a subsidiary of general motors gm, gm tools and software are used to reprogram a chevrolet pcm. Dst is designed for the performance enthusiast who wants total control of their vehicles programming and provides all the tools needed for precise performance tuning from a laptop or pc. First, all of my tuning experience is with a 96 obdii lt1 car using lt1 edit. His software is affordable, not restricted to a single ecm, and has a builtin flash utility. Supporting most gm vehicles from 1994 and up, we are here to offer you mail order tuning, dyno tuning, and also performance parts that are made inhouse as well as supplied from other manufacturers. Welcome to pcmforless, bringing you more than 25 years combined experience in the automotive racing and fuel injection tuning industry. The obd1 tuner program is a general purpose ecm calibration editor that allows you to make a wide variety of calibration changes to your vehicles obd1 ecm pcm from an easytouse windows arrangement. It uses a special tune to allow the old style 18436572 firing. Any tool that does diagnostics is going to be on the upper end of the programming tool cost spectrum.
If you have a pcm and are looking to do powertrain diagnostics as well, then you will need a fully equipped pcm programmer. My toy is an 87 monte carlo ss aerocoupe with a 383 stroker, 700r4 with 4. Ecu harnesses connect to the obd2 switch assembly through a short passthrough harness. Obd1 usb cable used to re flash car re flashing obd1 19941995 lt1 pcm.
The process of a 911 make over in this hyundai installer diaries 211 duration. All ignition and fuel control comes from megasquirt ii. Extended length cables up to 30 feet are available. Feb 26, 2016 obd1 usb cable used to re flash car re flashing obd1 19941995 lt1 pcm. Starting off by deciding pro or non pro, and if you even really need it or not. Introduction the 9495 f and y bodies are a dramatically different breed of pcm compared to earlier models used by gm. This website is dedicated to helping you learn how to tune your own lt1 car computer pcm, using the popular and inexpensive tunercat software as the model.
From what ive seen of the tunes posted, i think there are some things missing. Remove vats vehicle anti theft remove rpm limiter remove speed limiter remove all emissions related items lt1 pcm only disable mass air flow sensor. They are primarily tuned by reflash using the aldl protocol over the diagnostic port, not by programming and replacing chips. Injectors i had a similiar problem and it was a split wire that goes ito the fuse box in the engine bay it just happen to be one of the wires that goes into one of the two injector fuses i guess i split it messing around with the fuse box while i was trying to make my cooling fans to run while car on. I need to change injector size installed summit lt4 hotcam kit and put in 42lbs injectors for a later turbo project and car isn. Feel free to ask questions and post your information or additions for me to edit in.
To do fullblown engine diagnostics you will need a very advanced ecu programming tool that allows for this. At a minimum, this article should give you the knowledge to understand what a tuner is modifying in your pcm to give you that max power you are looking for. We have customers that bring us cars from several hundred miles away. Start with the basics, like removing the skipshift for you sixspeed owners, or accommodating for the. Whats the cheapest programmersoftware ls1lt1 forum. It literally had an engine transplant after my tune. This programming is for any 1994 or 1995 lt1 engine, applicable service numbers will be located on the pcm and end in either 051 or 333 available in caprice, roadmaster, cadillac, camaro, firebirdtrans am, and corvette. After you purchase a tune, please click on ordersheet above and fill it out online for us. Pcm and ecm services most pcm services will be performed within 24 hours. I would like to start of list of things that need to be changed from an 0102 fbody tune. If the vehicle isnt performing the way it should, the pcm can be reprogrammed to increase performance. This programming is for any 1994 or 1995 lt1 engine, applicable service numbers will be located on the pcm and end in either 051 or 333 available in caprice, roadmaster, cadillac. Efi connections ls1 pcmignition conversion gm hightech.
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