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very rough start and idle when starting car to leave work

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Old 04-27-2005, 02:01 PM
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Default very rough start and idle when starting car to leave work

I thought 100 octane mainly affects cold starts? I have no problem starting the car in the morning. While starting the car to leave work, it takes a few cranks to start, then sputters pretty bad. It seems like it's running rich for a few seconds. Once I get moving it runs great.

I hate to fill with 93 octane to rule out the 100 as the culprit If 100 octane gas is the problem I'll just let the starter crank more..
Old 04-27-2005, 02:10 PM
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yea the 100 might take a second longer to ignite...i think its fine
Old 04-27-2005, 02:25 PM
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Default Same here, but it seems to be only a problem with a cold start...

as soon as it's running, it's fine. And "cold" here can mean 80+ degrees in the morning. Maybe if it were colder, I'd have more noticable symptoms...
Old 04-27-2005, 02:25 PM
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Default ADD more startup fuel

"startup fuel enrichment" on lemmi 5-8% should do the trick.
Old 04-27-2005, 02:32 PM
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i think he's getting too much fuel during start up....maybe lean it a bit.
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