My 1995 EXR 2.2 misses when under load

Discussion in 'General Motoring' started by Larry K., May 23, 2004.

  1. Larry K.

    Larry K. Guest

    It is fine at idle but when I am driving the engine will miss when you
    give it a slight load. If you step on the gass a little more it
    smoothens out. I changed my plugs and my wires seem to be fine so I
    suspected an injector on the No. 1 cylinder because the plug is a
    little darker than the rest of the plugs.
    So I moved the #4 injector to the #1 cylinder and am waiting for
    results on that test. I don't think it is a vacume leak because it is
    fine at idle. Does anyone have any other suggestion on what could be
    the problem?
     
    Larry K., May 23, 2004
    #1
  2. Larry K.

    George Macdonald Guest

    Does it have EGR?... see
    http://autotech-elearning.com/forum/showflat.php/Cat/8/Number/321/page/0/view/collapsed/sb/2/o/all/fpart/1

    I believe a bad TPS (Throttle Position Sensor) has also been known to cause
    a similar problem - usually happens at some exact position of throttle
    opening IIRC, where the resistance reading seen by the ECU is off.

    Rgds, George Macdonald

    "Just because they're paranoid doesn't mean you're not psychotic" - Who, me??
     
    George Macdonald, May 24, 2004
    #2
  3. Larry K.

    Larry K. Guest

    Thanks for the reply and advise George. It does have an EGR system
    and I will run the tests on it and the TPS sensor. The injector swap
    turned out to be negative as it is still missing on the #1 cylinder.
     
    Larry K., May 24, 2004
    #3
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