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Car stalls when cold on startup/ idles afterwards 700 1989

posted by  gadfly151 on  Wed Jun 2 10:27 CST 2004
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last visit: Thu Mar 5 05:47 CST 2009
[RELATED]

Have you checked the Fuel pressure regulator and fuel pump regulator? Also, might be a good time to check cold-start injector (look for leaks around o-rings and compression fitting going to fuel rail, and check the resistance/voltage values in the Bentley manual). Also might want to check coolant temp sensor-not the sending unit at the front, but the one towards the rear of the block. Another thing would be to check the condition of the fuse panel from behind by removing it and looking at all the points. While you're at it, clean the fuse mounts.Check all ECU points for signal,ground, and continuity-All of these tests are detailed in the Bentley manual. If you don't have a good digital multi-meter-GO GET ONE! It will help. Also check the condition of the plugs for deposits-white=lean,Excessive Black=Rich, Grey=normal. Might be a good time to check plug wires and crank position sensor. Also don't forget to check all vacuum lines and check for split ends, disconnected lines etc. Lastly, do you have any check engine lights or fault codes,or smell gas strongly in the engine bay when this happens? These are valuable and can help to track down an irritating problem. Hope this helps...
--
1991 245 130k-(Volvo number 4)






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