General Motors E38 ECM/PCM – Service No: 12633238
This E38 ECM is for use with a 2010-2012 GM vehicle (Camaro, Caprice, Truck). The service number is 12633238. We offer an additional $85.00 GM TIS-SPS programming service to load any 2010-2012 E38 calibration into this ECM. A VIN is required to retrieve the correct calibration.
For 2006, GM introduced two new ECMs, E38 and E67. These controllers look somewhat similar to the E40, but slightly different connectors exist on each of the three, and none interchange. The new ECMs featured a departure from the historied 68000 series chip for a new Motorola PowerPC based 40 MHz, 32-bit RISC processor and a flash memory bumped up to a hefty 2 megabytes, or 2048 kilobytes-twice that of the replaced controllers. They are also the first GM controllers to feature floating-point processing, an improvement to the accuracy in which it makes calculations. The E38PCM is NOT ideal for vehicles with variable valve timing.
- Brand: AC Delco
- Part number(s): Service No: 12633238
- Color: Aluminum
- Features: Motorola PowerPC based 40 MHz 32-bit RISC processor
- 2 megabytes memory
- 58x crankshaft reluctor
- NOT compatible with variable valve timing
- ECM’s are refurbished so they may have slight oxidation or markings from storage