P0300 Multiple Misfire
01-04-2007, 06:22 PM
#1
Junior Member
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Join Date: Nov 2006
Posts: 24
P0300 Multiple Misfire
Hey everyone,
I just read this code of my ECU today since my car is running like crap. Its boggy and idle is bad. About 3 weeks ago I had a cylinder 4 misfire in which I replaced the ignition coil and that seemed to fix the problem. I never cleared the ECU so whatever code was there was still there. Now I read the ECU and picked up a Multiple Misfire P0300 code. Could this be just another ignition coil, if so is there an easy way to figure out which one is bad so I can replace it.
I just read this code of my ECU today since my car is running like crap. Its boggy and idle is bad. About 3 weeks ago I had a cylinder 4 misfire in which I replaced the ignition coil and that seemed to fix the problem. I never cleared the ECU so whatever code was there was still there. Now I read the ECU and picked up a Multiple Misfire P0300 code. Could this be just another ignition coil, if so is there an easy way to figure out which one is bad so I can replace it.
01-04-2007, 06:42 PM
#2
multi cyl misfire can be cause by a number a things....
I Improper spark plug
I Insufficient compression
I Incorrect fuel pressure
I EGR valve
I The injector circuit is open or shorted.
I Injectors
I Intake air leaks
I The ignition secondary circuit is open or
shorted.
I Lack of fuel
I Magnetized signal plate (flywheel or
drive plate)
I Front heated oxygen sensors
I Improper spark plug
I Insufficient compression
I Incorrect fuel pressure
I EGR valve
I The injector circuit is open or shorted.
I Injectors
I Intake air leaks
I The ignition secondary circuit is open or
shorted.
I Lack of fuel
I Magnetized signal plate (flywheel or
drive plate)
I Front heated oxygen sensors
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