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.

 

your MAF sensor may just need a good cleaning

 

that or your throttle body needs cleaning, maybe new spark plugs.. or it can even be bad gas.. (not in a immature way.. haha)

 

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..

 

yeah it may be the spark plugs, that'll cause idleing issues

 

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.

 

Hey What about a Vacuum leak?? That can cause a idle issue

 

maybe need to put some fuel injector cleaner through it to unclog some injectors.

 

thanks for the quick replies guys.. great resources..