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high surging idle 900 1995

posted by  guri r on  Sat May 27 05:29 CST 2006
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last visit: Thu May 8 22:46 CST 2014
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This is a 1995 945 Turbo with high (about 1500 to 1800 rpm) and surging idle when the engine is warm and car is in park or neutral. It starts out OK, and problem comes up and worsens as it is driven more. When in gear, idle is where it should be. Original fault code was 3-2-2, 2-3-2, and 1-2-1, pointing to AMM. That was replaced. The original problem is back and the codes are now 2-3-2, 1-2-1, snd 1-1-3. Any advice much appreciated? Faulty O2 sensor? I'm going to go out and clean throttle body, check injector for leaks, and wiring on AMM and O2 sensor as maintenance items, but doubting this will correct things.






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New high surging idle [900][1995]
posted by  guri r subscriber  on Sat May 27 05:29 CST 2006 >


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