misfire - FirebirdV6.com/CamaroV6.com Message Board

Announcement

Collapse
No announcement yet.

misfire

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • misfire

    my new car has a misfire in low to mid rpms IN DRIVE, idles/rev's a bit rough but decent in park...

    tomorrow I'm gonna plug the EGR, see if that works

    I ordered new plugs, wire, coil packs, icm

    If that doesn't work I'll order fuel injectors

    I might also cut off the cat tomorrow just in case

    What else can I check? I think i've covered most the 'common' culprits...

    also, it throws a SES but I cannot get it scanned b/c no insurance = i cant drive to ****in autozone
    1999 Camaro Z/28
    1973 Firebird Formula

  • #2
    Re: misfire

    my car missed fire like that too,,,one night i popped the hood (its was dark) and saw a nice electric spark show from 4 wires.

    Comment


    • #3
      Re: misfire

      Whatever you do, don't cut off the cat unless you're absolutely positive that it's causing a problem. I've learned from my mistake.

      Comment


      • #4
        Re: misfire

        I had that, replaced my plugs and plug wires. Misfire went away for about 500 miles, then came back :( Not sure why, thinking I might be burning oil and fouling out the plugs or something.

        Comment


        • #5
          Re: misfire

          I made some progress today.

          I removed the wires from the 3-6 coil pack and engine idle did not change, when i removed the wires from the other two coil packs, it barely ran when i did that.

          That narrows down the problem to the 3-6 coil pack or plug wires 3 or 6, or spark plugs 3 or 6

          the SES light is flashing so it most likely is an ignition problem
          1999 Camaro Z/28
          1973 Firebird Formula

          Comment

          Latest Topics

          Collapse

          • Andy H
            Transmission removal help!!
            by Andy H
            Hey everyone! I've been trying to remove my transmission for two days now! I need to replace the clutch. Only thing I've got left holding the transmission...
            2 weeks ago
          • 2.8 Bird
            Abs inop
            by 2.8 Bird
            Hello, so I changed the front bearings on the bird and the ABS inoperative light came on. I made a mistake of not removing negative battery cable. Now...
            3 weeks ago
          • fishin
            Intermittent Headlight Function 97 Firebird
            by fishin
            I usually have to double, triple my headlight switch for them to come up on my 97 Firebird. I cleaned all connections. Could it be the headlight switch...
            3 weeks ago

          FORUM SPONSORS

          Collapse
          Working...
          X