Quote:
Originally posted by Bobbiji
Hi Gang. Advice please. I am experiencing difficulty restarting the engine sometimes when it is hot. Catches but doesn't want to run at idle. Lots of cranking and wide open throttle will get it going eventually - then it runs rough for a time. Thought maybe the throttle position sensor or an oxygen sensor might be a culprit. Does this problem ring a bell with anyone? Suggestions welcome. Thanks, Bob.
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Hmmm, normally I'd suspect a bad pressure regulator or fuel pump. But that doesn't explain the holding the throttle open scenario. That would be like putting the thing in "clear flood" mode...shutting off the fuel. Does it belch white smoke when it does start? That would indicate an injector leaking and flooding a cylinder and explain the need to hold the throttle open. Are you getting a check engine light? What I'd do is to put a guage in the fuel line, pressurize the system and then let it sit, see if the pressure drops, and then run it for a time and see what the pressure does then. I once had to put a few bucks worth of Conoco gas in my '94 and I had drivabilty problems until it was used up. I'll push it to a Chevron station before I use Conoco fuel again.