1989 MAZDA 929 ROUGH IDLEING WHEN COLD

  • Tiny
  • siebhotep
  • 1989 Mazda 929

Engine Performance problem
1989 Mazda 929 6 cyl Two Wheel Drive Automatic 110000 miles

I changed the wires and plugs rotor and distributor cap on this vehicle I am trying to revive. It has been sitting for a few years. It runs fine on the open road but when it is first started it idles unevenly. If sitting at a light it may die. Putting it in park helps but I would like to get this right. Is there an adjustment for the idle speed?

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Wednesday, April 9th, 2008 AT 1:30 PM

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  • Tiny
  • merlin2021
  • Expert
  • 17,589 posts

Clean or replace the ISCvalve, Idle speed control, bolted to throttlebody.

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Wednesday, April 9th, 2008 AT 1:39 PM

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