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engine idle under 300rpms

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Old 05-23-2008, 07:08 PM
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Default engine idle under 300rpms

I just got an oil change and now my car is idling under 400rpms. One time it died. It vibrates a lot and then gradually goes down to 0rpms where the car is basically dead. There is no check engine light. Could it be the gas that I use, the change from synthetic to regular oil, or a broken sensor? My only power mods are injen intake and trd exhaust. Please help, I don't feel like buying another new MAF sensor.
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Old 05-23-2008, 07:55 PM
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your MAF sensor may just need a good cleaning
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Old 05-23-2008, 08:42 PM
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that or your throttle body needs cleaning, maybe new spark plugs.. or it can even be bad gas.. (not in a immature way.. haha)
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Old 05-23-2008, 11:52 PM
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true.. im going to look into the spark plugs and thorttle body.. i cleaned the MAF and reset the ECU.. my car didnt die and it the idling went to normal.. but it still vibrates and occcasionally goes down to 300rpms..
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Old 05-24-2008, 02:08 AM
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yeah it may be the spark plugs, that'll cause idleing issues
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Old 05-24-2008, 03:55 AM
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Or of some reason they disconnected the battery, which means it will idle rough for a bit until you drive it a while and it relearns.

Unless something else is wrong, you plugs should be fine if you are not pushing 100,000 miles or so.
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Old 05-24-2008, 04:01 AM
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Hey What about a Vacuum leak?? That can cause a idle issue
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Old 05-24-2008, 04:11 AM
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maybe need to put some fuel injector cleaner through it to unclog some injectors.
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Old 05-25-2008, 12:54 AM
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thanks for the quick replies guys.. great resources..
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