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Old 06-25-2008, 11:02 PM   #1
TrojanMan
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Default 2002 Sl1 P0507

Same ole story, check engine light came on, had autozone hook it up to check errors and got cyl #1 misfire and high idle P0507. I understand that this has something to do with a vacuum condition. Most of what i have read suggest a new gasket on the intake manifold.

I would appreciate the following: Common causes of this error and what steps i can take to determine exactly what is causing it.

Second, will driving the vehicle in this condition cause any permanent damage or cause the car to fail. I'm getting ready to take a long trip with this car and dont want to be stuck on the side of the road.

Thanks!
TM

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Old 06-25-2008, 11:13 PM   #2
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Default Re: 2002 Sl1 P0507

Welcome to the Board.

You have read up on it so you know the check is to spray intake cleaner or brake clean at the intake gasket area, engine running. The idle will change. This will confirm what the codes have told. 99% chance that it is the gasket folded in.

Best to replace the gasket before you go on the trip but it should not do serious damage if left. I have seen cars barely run because of this but it is never something that should be left. You have a vacuum leak at the intake. This allows unfiltered air into the engine and sets undesirable PCM adaptives due to the leak.

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Old 06-26-2008, 11:24 AM   #3
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Default Re: 2002 Sl1 P0507

If it's the initial cause of the gasket failure you're looking for, it's on the car's title. The fact that it's a 2002 SL1, a third-generation SOHC. During that time, there was a robot at the factory in Spring Hill with a serious drinking problem, that installed several of the gaskets with a crease in them. Somehow, they still managed to hold, but it was only a matter of time until they would fail (right about now, evidently).

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