well my poor car is at it again
cylinder 4 has always missfired at idle and it runs horrible at idle but now it seems to have gottin worse. when im sitting at a redlight my RPM just goes from 1 grand to 0 but doesint die it shakes alot and feels like it but it doesint then the light will turn green and i will give it gas and the car will shake really bad and the car wont accelerate it feels like and my RPM is just flopping up and down then it will shift and be good for alittle while then when im doing 45 mph the car will just shake really bad again and has this weird jerking motion it feels like then when i got home i pulled up into the driveway and my car died then i starte dit back up put it back into drive and it died again....then i jsut went out there and it seems to be running alittle bit better at idle and wont die atleast for the time i last ran it it didint. what could be causing this? could it be that cylinder 4 missfireing while driving it aswell or could it maybe be my o2 sensor? this really sucks guys!
any help would be much appreaciated
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