The 84-87 Grand National was a unique car available in limited production. These vehicles featured sequential injection, distributorless ignition systems and other groundbreaking features. A combi...
Unfortunately, the 1226870 is an oddball one-year one-model ECM that was only used on the 1985 corvette. It is for a TPI setup with an electronically controlled distributor and features 160 baud ...
The 86-89 F and Y bodies were among the first EFI computers used by GM that featured a Mass Air Flow sensor (MAF) for air metering. P4 generation ECM, 160 or 8192 baud ALDL communication (depends...
The 86 throttle body injection (TBI) system was the beginning of GM’s transition from carburetors to fuel injection. This is the first of the “classic” speed-density computers which featured a MA...
The 90-92 Firebird and Camaro were the first of the P4 generation computers which featured a MAP sensor and speed-density for airflow metering. These fundamental airflow models were used largely ...
The 91-93 Syclone trucks and Typhoon SUVs were a unique low-production vehicle that featured a powerful turbocharged 4.3L V6 engine. They use the 1227749 ECM, which is most similar to the 1227730...
This is one of the first electronically-shifted transmission applications. Some 1991-93 vehicles came equipped with 4L80E transmissions and 16147060 PCMs. This is a P4 generation ECM which speak...
The 1993 Camaro / Corvette LT1 PCM 16159278 is an oddball. It was not used before or since. The $DA2 mask was used in Y-body Corvettes and the $DA3 mask was used in F-body Camaro/Firebirds.
Hard...
Starting around 1992, GM started putting the newer electronically controlled 4L60E and 4L80E transmissions in their trucks. Along with the electronically controlled transmissions came new ECMs th...
The 94-95 F and Y bodies are a dramatically different breed of PCM compared to earlier models used by GM. They are primarily tuned by reflash using the ALDL protocol over the diagnostic port, NOT...
Product Pages: RTTUNER_NON_, TUNERCAT_WINRelated Articles: RTTUNER_NON_, TUNERCAT_WIN
The 96-97 F and Y bodies use a unique PCM that is an evolution of the 94-95 ECM but requires unique tools. T...
