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245 idles rough after a heat soak, other times OK 200 1993

posted by  jkordzi on  Mon Feb 24 02:58 CST 2003
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last visit: Wed Sep 12 02:43 CST 2001
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My 93 245 has a habit of idling rough after it has run for a while and then sits for 15 minutes or so. Occasionally it will stall. Either reving it up for about 10 seconds or driving it for a minute or two cures the problem. Any other time it idles fine. All the sensors, plus the AMM and the ECU have recently been replaced, plus it has had a complete tune up. I'm thinking that fuel is leaking past one or more of the injectors when the engine isn't running, causing a rich condition when the engine is restarted. I checked the residual fuel pressure and it stayed over 40 psi after 15 minutes. Any thoughts are appreciated.






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