Gm ecm reprogramming software#

Hardware-wise, the majority of these vehicles use the G1 chip adapter. TunerCat OBD1 tuner seems to have the best support for Holden vehicles at this time ( link ) although TunerPro has support for some ( link )

There is an excellent cross-reference I found with google that lists common ECMs, which mask (software revision) they use and various other useful information.

Gm ecm reprogramming software#

TunerPro RT ( link ) and TunerCATS ( link ) are the two most commonly used software packages for OBD1 GM.ДЇreeScan is a free datalogger that works with some GM vehicles. If you have excel, you can also take a look at this spreadsheet for a list of what hardware youвЂ™ll need with various combinations. * Socket Booster ( S_BOOSTER) required for Ostrich 2 emulation and TBI ECMs If you donвЂ™t see your application here, please email us. Can be used instead of G2 adapter.Д¬ABL1вЂ“ Used to connect an ALDU1 or APU1 and a pre-1995Д¬ABL2 вЂ“ Used to connect an ALDU1 or APU1 and a 1995 carДЄPU1 вЂ“ Combines the functions of the BURN2 (programming chips), Ostrich 2.0 (real time chip emulation) and the ALDU1 in one unit Applications Socket Booster вЂ“ required for use of Ostrich 2.0 in TBI applications. Ostrich вЂ“ USB Chip emulator, allows realtime changes while engine running Used to read stock program on memcal ECMs. HDR1 вЂ“ Header that allows reading memcals in a BURN1/2. G4 вЂ“ Blue Memcal style chip adapter for some 94-95 vehicles G3 вЂ“ Multiple program switching version of G1 G2X вЂ“ Multiple program switching version of G2 G1 вЂ“ вЂњMemcalвЂќ style chip adapter (TPI, Syclone/Typhoon, 94-95 TBI, 92-93 LT1, etc.) Instead of buying the BURN2, Ostrich2 and ALDU1 separately, you can buy the APU1 unit that does the functions of all three pieces in one unit. For the 1995 model year, CABL2 is required due to the physically different connector. For 86-94 vehicles, CABL1 is required to connect the logger and the vehicle. Logging from the computer is accomplished using either an ALDU1 or the logging facilities of an APU1. Alternatively, you can either use the Ostrich 2.0 emulator or the emulation facilities of the APU1 to make changes while the vehicle is running. You can burn chips using a ROM burner such as the BURN1/2. The same EPROMs can be used for all of our OBD1 GM products (except the switching adaptersвЂ¦) which is usually the 27SF512 вЂ“ C2.ДЄfter a chip adapter has been installed in an ECM, tuning can begin. Some chip adapters require soldering for installation (G2, G2X) but most do not (G1, G3, G4, G5). First, a вЂњchip adapterвЂќ is used to convert whatever the ECM in question needs into a form that accepts a 28 pin EPROM. The process for tuning OBD1 GM products is pretty much the same for all 86-93 model years. Many Grand Prix from these years use the G4 adapter. Some (like the 94-95 TBIs) use a G1 adapter.

Many of these ECMs support being reflashed over the ALDL interface (e.g. Hardware for OBD1 GM OverviewД©4-95 model years are oddballs. All the vehicles of this generation speak the ALDL protocol for logging/vehicle communication.ДЇor purposes of this guide, вЂњECMвЂќ means Engine Control Module, Powertrain Control Module (PCM), Engine Computer Module (ECM) вЂ“ terms will be used interchangeably to mean the same thing. These cars used several different types of engine controller вЂ“ some have one injector for each cylinder (Tuned Port Injection, or TPI along with the LTx motors) while some have fewer injectors that are placed near the throttle body (Throttle Body Injection, or TBI) instead. When we talk about вЂњOBD1вЂќ GM vehicles, we mean vehicles made from (approximately) 1986 to 1995. (eventually this page will have more information) Basics