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Holden:Power-train Control Module (view source)
Revision as of 12:27, 20 April 2021
, 12:27, 20 April 2021→3800 Engines
== 3800 Engines ==
== 3800 Engines ==
[[File:Tpiecm-memcal-removed.jpg|thumb|right|3800 PCM with the Memcal module removed]]
The '''L36''' and '''L67''' 3800-series engines use a single PCM for both engine and transmission management based on the [https://en.wikipedia.org/wiki/Motorola_68HC11 Motorola 68HC11] 8-bit microcontroller. On the majority of L36 and L67 PCMs, firmware, calibration data and software configuration are stored on a single UV-erasable PROM chip within a cartridge inside the PCM. This cartridge is known as the '''Memcal''', and is accessible via a small cover on the PCM held in place by a single screw. Some PCM models however (such as the naturally-aspirated L36 in the VY Commodore) use a non-removable internal flash chip for storage. Flash PCMs have the advantage of being re-programmable via the diagnostic link connector.
The '''L36''' and '''L67''' 3800-series engines use a single PCM for both engine and transmission management based on the [https://en.wikipedia.org/wiki/Motorola_68HC11 Motorola 68HC11] 8-bit microcontroller. On the majority of L36 and L67 PCMs, firmware, calibration data and software configuration are stored on a single UV-erasable PROM chip within a cartridge inside the PCM. This cartridge is known as the '''Memcal''', and is accessible via a small cover on the PCM held in place by a single screw. Some PCM models however (such as the naturally-aspirated L36 in the VY Commodore) use a non-removable internal flash chip for storage. Flash PCMs have the advantage of being re-programmable via the diagnostic link connector.
=== Modifications ===
=== Modifications ===