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TPI TBI CCC troubleshooting, data (codes, wiring, swaps etc)

Discussion in 'The Garage' started by dyeager535, Jun 21, 2005.

  1. dyeager535

    dyeager535 1 ton status Premium Member

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    11-11-05
    Updated with ALDL cable links

    OK, finally got the time/inclination to do something for those that don't have service manuals, or those that do and just don't want to scan this stuff in, or want to read it at work, etc. :)

    As you will see, Trickster over on thirdgen.org has been nice enough to scan all of these charts in. Be forewarned, these are F-body diagrams, so you TBI/CCC folks should be careful, but you will find most things are identical I'm sure.

    Not complete of course, but at least everything I could find is now in one post. I will update as I find more. PM me (if you can) and have more charts to add, that way the thread doesn't get bogged down with responses unnecessarily.

    Chevythunder code/troubleshooting list

    I can't vouch for those. Not factory scans, but look to be the same info in a slightly different format.

    1990 R/V truck wiring diagrams

    ALDL pinout

    ALDL cable scematics

    Ignition system test This is for TPI, but should be pretty close to TBI as well. Some of the tests I guarantee are.

    Identifying TPI system differences

    Vehicle repair guides Check these out for wiring diagrams, etc. Can't vouch for how good the quality is, but I see that our trucks are listed.


    TBI

    O2 Open circuit

    Codes 15/23/32 CTS coolant temp low/MAT sensor low temp/EGR

    Code 24 VSS

    Code 42 EST

    Code 43 EST

    TPI

    MAF wiring diagram

    MAP interior harness connector pinout

    Codes 15/45 coolant temp/O2 sensor 2.8L port

    Code 23 Inlet Air Temp (IAT) low temp indicated

    Code 24 VSS

    Code 32 EGR

    Codes 33/36 MAF gm/sec high and MAF burnoff

    Code 34 MAF gm/sec low

    Code 41 Cylinder Select Error

    Code 42 EST

    Code 44 O2 lean

    Code 54 Fuel pump circuit low voltage



    CCC

    Code 23 M/C Solenoid volts low to ECM

    Code 24 VSS

    Code 32 Baro sensor

    Injection specific:
    crank no run 1

    crank no run 2

    External coil, pickup testing

    MAP voltage/baro/vacuum chart

    C100 (fuse panel) connector '85/89 Camaro

    I also have the entire GM TBI/TPI troubleshooting sections, '89 Camaro, in .pdf (about 2MB each) if someone is interested in hosting those somewhere that I can point people to, PM if so. The TBI Camaro stuff is identical to truck in almost every regard.
     
    Last edited: Nov 11, 2005
  2. southernspeed

    southernspeed 1/2 ton status GMOTM Winner

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    Good work fella. Interesting info source for the future :waytogo:
     
  3. uglyangelracing

    uglyangelracing 1/2 ton status

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    I am trying to install a 1987 z28 TPI onto my 1985 K5. Has anyone on here done this? I am trying to find instructions on it. I have the intake, entire wireing harness from engine compartment, computer, sensors.

    What can I eliminate from the stock harness?

    Do I need the harness from inside the car?

    Is there a book thats any good on this?
     
  4. dyeager535

    dyeager535 1 ton status Premium Member

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    Since I can't PM you:

    Please delete your post in this thread, and create a new one with a title reflecting your goal. I (and others I'm sure) will be happy to post my experiences/opinions installing '87/88 TPI into my '86. Of course, search will answer a lot of specifics as well, a few of us have done the TPI conversion.
     
  5. y5mgisi

    y5mgisi 1 ton status

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    very nice!
     

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