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1994 3.4L engine wiring diagram needed

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  • 1994 3.4L engine wiring diagram needed

    Chilton's is some kind of messed up. Ex. Shows dk blue wire on pin 20 of the PCM as a ground but the wire is shown as going to the knock sensor.

    Anyone have a factory service diagram?

  • #2
    Originally posted by Revver
    Chilton's is some kind of messed up. Ex. Shows dk blue wire on pin 20 of the PCM as a ground but the wire is shown as going to the knock sensor.

    Anyone have a factory service diagram?
    Well, there are 3 connectors. Pin 20 of connector C (blue) is the dark blue wire for the knock sensor.
    Rob B 95Z A4 Tech Page (Part numbers / locations, how to's, schematics, DTC's...) Home Page - shbox.com

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    • #3
      The Chiltons has incorrect labels in the box representing the PCM. Right under C20 (which is labeled as "GROUND"), for example, the six injector wires are incorrectly labled as "A/C Status"; "Ignition Input"; "-blank-"; "Pressure Control Sol (HI)"; "Pressure Control Sol (LO)"; "-blank-". Just ignore the labels. The pin designations, wire colors and wire routing appear correct.
      Fred

      381ci all-forged stroker - 10.8:1 - CNC LT4 heads/intake - CC solid roller - MoTeC engine management - 8 LS1 coils - 58mm TB - 78# injectors - 300-shot dry nitrous - TH400 - Gear Vendor O/D - Strange 12-bolt - 4.11's - AS&M headers - duals - Corbeau seat - AutoMeter gauges - roll bar - Spohn suspension - QA1 shocks - a few other odds 'n ends. 800HP/800lb-ft at the flywheel, on a 300-shot. 11.5 @ 117MPH straight motor

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      • #4
        On a Fiero forum one can find links to download things like year specific factory service manuals ( http://www.fieronews.net/fusion/downloads.php ) and Haynes manuals (http://www.fieronews.net/fusion/Down...ads/haynes.pdf ) for Fieros.

        Do we have similar links for Firebirds anywhere?

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