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Thread: PCM Conversion Information

  1. #101
    Joe (Moderator) joecar's Avatar
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    Post #95 contains the most recent document/list.

    PCM-Conversion-Information&p=188765-->post#95

  2. #102
    Joe (Moderator) joecar's Avatar
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    Yah, maybe we should just update the document attached in post #1.

  3. #103
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    one pcm I`m not seeing is 12581565 would this be a suitable unit to retrofit into a 1989 K1500 with TPI, engine is staying Gen1 but I am having EFIconnections 24x reluctor installed. Wondering about gauges, 40T transfercase reluctor on the 700r4. A Silverado is in the wreckers now and I can grab the complete harness, coils and ecu. Perhaps there is a better choice- 411.... but this is here and now.

  4. #104
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    Ttt

  5. #105
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    Lots of good information here.

    As a result of a quick read through the PDF referenced in the second post:

    Missing from the abbreviation list: DOD, CKP (in header), CMP (in header), CAX

    Missing from the engine RPO list: LK5, L52, LL8, LSJ, LD9, L61, LN2, LU3

    References to I4/5/6, L4 and V6 for specific vehicles should be replaced with the RPO.

    Which ECUs are MAP/TPS (are there any?) and which are MAF/MAP/TPS? Which ECUs can handle E85 (flex-fuel) with stock programming?

    Should it be mentioned that all ECUs need engine temp and intake air temp sensors?

    Should it be mentioned that DBC implementations need an IAC system (includes add IAC to the abbreviation list)?

    DBW/DBC information is sparse, especially on the newer ECUs.

  6. #106
    Joe (Moderator) joecar's Avatar
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    For those reading who must know what they mean:

    DOD = Displacement on Demand, aka AFM

    AFM = Active Fuel Management, aka DOD

    IAC = Idle Air Control

    CKP = symbol for Crank Position and/or its sensor

    CMP = symbol for Cam Position and/or its sensor

    CAX = calibration extension (if a user knows where an unpublished table resides at in the PCM's flash, they can make a definition to expose it)

  7. #107
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    Quote Originally Posted by joecar View Post
    For those reading who must know what they mean:

    DOD = Displacement on Demand, aka AFM

    AFM = Active Fuel Management, aka DOD

    IAC = Idle Air Control

    CKP = symbol for Crank Position and/or its sensor

    CMP = symbol for Cam Position and/or its sensor

    CAX = calibration extension (if a user knows where an unpublished table resides at in the PCM's flash, they can make a definition to expose it)
    Thanks, Joe!

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