Engine Check Engine Light

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


  1. ace940

    ace940 Member

    Joined:
    Oct 17, 2011
    Messages:
    78
    Likes Received:
    0
    Trophy Points:
    17
    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
     
    #1
  2. 95Vert383AOD

    95Vert383AOD Active Member

    Joined:
    Jun 10, 2008
    Messages:
    1,300
    Likes Received:
    35
    Trophy Points:
    49
    Location:
    Providence, RI
    Unplug the tps before starting and see what happens....If it does the same then try pulling the IAC
     
    #2
  3. ace940

    ace940 Member

    Joined:
    Oct 17, 2011
    Messages:
    78
    Likes Received:
    0
    Trophy Points:
    17
    it only does it occasionally is there a code in those 4 blinks somewhere they are all evenly spaced
     
    #3
  4. toyman

    toyman SN Certified Technician

    Joined:
    Jul 20, 2007
    Messages:
    1,855
    Likes Received:
    42
    Trophy Points:
    49
    Location:
    Vernon BC
    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.
     
    #4
  5. BlownFiveLiter

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

    Joined:
    Nov 30, 1999
    Messages:
    5,504
    Likes Received:
    25
    Trophy Points:
    88
    Location:
    Chicagoland
    Does it have any codes when you check them?
     
    #5
  6. ace940

    ace940 Member

    Joined:
    Oct 17, 2011
    Messages:
    78
    Likes Received:
    0
    Trophy Points:
    17
    i checked them once but didnt get any that were in the book that came with the reader
     
    #6
  7. StangGT1995

    StangGT1995 Banned

    Joined:
    Oct 2, 2012
    Messages:
    20
    Likes Received:
    4
    Trophy Points:
    13
    Location:
    Chicagoland
    What codes come up when you run them?
     
    #7
  8. ace940

    ace940 Member

    Joined:
    Oct 17, 2011
    Messages:
    78
    Likes Received:
    0
    Trophy Points:
    17
    how do you check the codes w/o the scanner? i know it can be done i just dont know how
     
    #8
  9. toyman

    toyman SN Certified Technician

    Joined:
    Jul 20, 2007
    Messages:
    1,855
    Likes Received:
    42
    Trophy Points:
    49
    Location:
    Vernon BC
    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.
     
    #9
  10. ace940

    ace940 Member

    Joined:
    Oct 17, 2011
    Messages:
    78
    Likes Received:
    0
    Trophy Points:
    17
    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
     
    #10
  11. ace940

    ace940 Member

    Joined:
    Oct 17, 2011
    Messages:
    78
    Likes Received:
    0
    Trophy Points:
    17
    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.
     
    #11

Share This Page