Engine Check Engine Light

Discussion in '1994 - 1995 Specific Tech' started by ace940, Oct 1, 2012.


  1. ace940

    ace940 Member

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    hi all. on some days when i get up to go to school or anytime when i start my car the cel flashes 4 times and then the engine revs to about 1.5k and will hold untill i put the engine under load. im wondering if anyone knows what that means. my guess is a bad tps but i dont want to spend the money w/o knowing. thanks
  2. 95Vert383AOD

    95Vert383AOD Active Member

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    Unplug the tps before starting and see what happens....If it does the same then try pulling the IAC
  3. ace940

    ace940 Member

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    it only does it occasionally is there a code in those 4 blinks somewhere they are all evenly spaced
  4. toyman

    toyman Active Member

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    Were you playing with the DTC connector recently. I ask because if you left a jumper on between the self test input and pin 2 on the larger connector the CEL will flash 4 times when the ignition is turned on.
  5. BlownFiveLiter

    BlownFiveLiter have car, will race....wait, it doesn't run

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    Does it have any codes when you check them?
  6. ace940

    ace940 Member

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    i checked them once but didnt get any that were in the book that came with the reader
  7. StangGT1995

    StangGT1995 Banned

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    What codes come up when you run them?
  8. ace940

    ace940 Member

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    how do you check the codes w/o the scanner? i know it can be done i just dont know how
  9. toyman

    toyman Active Member

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    This post by you indicates you have a reader. What did I miss?

    This link should help you with checking the codes without a reader.
  10. ace940

    ace940 Member

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    i just dont like the reader. its way older than the car and the book didnt have the codes we got. maybe we were reading them wrong? idk
  11. ace940

    ace940 Member

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    i checked the codes and found the following... key on engine off, 552-secondary air injection bypass (airb) circuit failure/ 553- secondary air injection diverter circuit failure/ 558- egr vacuum regulator circuit failure/ got all of those 2 times/////then the memory with key on engine off, 332-insufficient egr valve opening detected/ got that one 2 times/////////// key on engine running, 172- heated Oxygen sensor indicates lean condition right side (memory)/ 332-insufficient egr opening detected (memory)//////////////////// what does all of this mean? i know that the egr isn't opening properly. however that's all i got from this.

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