surging

  1. T

    Are IAC valves adjustable?

    Idling issues on my 2002 MP 5 (150 k) driving me nuts! Had rough idle and private Mazda master tech mechanic suggested likely faulty IAC. Bought new IAC (SMP brand aka Standard) for $125 (a steal I thought as most around $200 mark) plus new OEM gaskets for IAC & throttle body. Got mechanic to...
  2. M

    High idle? Pulsing or surging RPM on deceleration? Here's the solution (probably) -

    I've been driving myself crazy trying to figure out why my daughter's P5 idled at 1500 rpm and would pulse (or surge, or jump around, or go up and down) on deceleration. After finding that turning the air adjustment screw (AAS) all the way in had no effect (still high idle), and checking for...
  3. B

    Stumped - Surging, trans problem?

    Hey everybody I'm new to posting to the forum but have been using it to troubleshoot a bunch on my P5 - thanks for all your help! This one's a call to arms, i'm completely stumped and haven't been able to find much information about my symptoms anywhere. Some back info (and please let me know...
  4. L

    Car surging when start moving

    This is my first tread and a question, although I have read lots of posts searching for information, and find this forum very helpful. I recently bought a P5 2003 with 105K km. Did regular maintenance, breaks, spark plugs, thermostat, AUX input for the radio for bluetooth, first oxygen sensor...
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