Low Idle/Engine Running Roughly
The problem started when I first had trouble starting the car. It sometimes
stutters when turning over, and at times it will die immediately after starting.
Starting problems have increased in frequency along with a lack of power,
and an unusually low idle. I attempted to start up my car one day and the
engine shook pretty violently and loudly. (It has only happened once) The car
shakes when at idle or at very low speeds(<5mph). Shaking isn't noticeable
when driving 10mph+. The RPM's seem to drop really low (500 or less,
sometimes almost stalling) when shifting into reverse or drive, but then go
back to relatively normal levels. The RPM's are pretty consistent and are not
bouncing around, but the engine is still shaking. I have had CEL checked
and it is reading P0300. All spark plugs have been replaced along with spark
plug wires, as well as a fuel induction cleaner service has been done with my
vehicle, but these haven't solved the problem. Throttle body and MAF sensor
have been cleaned as well. Could this be a fuel injector/other fuel problem?
Any thoughts would help!
