Misfiring when warm - Saab 900 Bulletin Board - Saabnet.com
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1992 900 Non turbo
The Problem: starts and runs great (idles and accelerates perfectly) but begins to misfire randomly after reaching normal running temp, both at idle and higher rpm’s. When engine is warm it won’t idle nicely - randomly jumps to 2000. Check Engine light does not come on.
Recent repairs: crank sensor replaced, new alternator, distributor cap, rotor, spark plugs, spark plug wires, battery good, coolant filled and bled, tried new fuel and spare fuel pump and IAC, tried an AMM from a turbo, all without success.
Any suggestions would be appreciated!
Posts in this Thread:
- Misfiring when warm, trich , Tue, 15 Aug 2023 15:40:18 <-- Viewing This Message
- Re: Misfiring when warm, Name Left Blank, Wed, 23 Aug 2023 09:38:41
- Re: Misfiring when warm, t, Wed, 23 Aug 2023 05:17:14
- Re: Misfiring when warm, Simon S, Thu, 17 Aug 2023 06:47:24
- Re: Misfiring when warm, trich , Wed, 16 Aug 2023 08:26:00
- Re: Misfiring when warm, Matt Grimes , Mon, 21 Aug 2023 14:58:35
- Re: Misfiring when warm, Simon S, Thu, 17 Aug 2023 07:13:06
- Re: Misfiring when warm, Goblin , Wed, 16 Aug 2023 16:27:36
- Re: Misfiring when warm, Matt Grimes , Wed, 16 Aug 2023 12:40:46
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