audimark42

ok here we go after starting the car it idles regular for about 5 sec and then starts to misfire rapidly, after a few seconds of reving it runs fine. and driving is fine after, until i get to about 5000 rpms then it starts to misfire again. i hooked it up to the code reader and the 2 codes i get are, (P0300)- random/multipule cylinder misfire dectected, (P0301)- cylinder 1 misfire detected, (P0302)-cylinder 2 misfire detected, (P0303)- cylinder 3 misfire detected, (P0304)- cylinder 4 misfire detected. Has anyone had this problem? or have any idea on what it could be?


i got the car about 30,000 miles ago and i changed the plugs when i got the car. the coil packs haven't been touched, they are pushed all the way down, and i haven't touched the timing since i got the car

Nate (ETKA+Scumbag)

Spark plugs are shot?

JAFO

pull a coilpack and check for oil. leaky valve cover may cause this.

audimark42

well i just put new spark plugs and a new fuel filter in and it is still doing the same thing.... any other ideas?