P0302 Misfire Cylinder 2
#1
P0302 Misfire Cylinder 2
i have an 03 sedan. the computer read misfire on cylinder 2. the electrode was broke in the spark plug. i changed the spark plug and checked the compression and its 120. the boot was full of oil. i cleaned the boot.
also, i checked the coil and spark plug and is sparking. after that still reading misfire on cylinder 2. can a fuel problem cause this code?
also, i checked the coil and spark plug and is sparking. after that still reading misfire on cylinder 2. can a fuel problem cause this code?
#3
#4
Registered User
iTrader: (2)
Join Date: Aug 2009
Location: Cheshire, CT
Posts: 75
Likes: 0
Received 0 Likes
on
0 Posts
Few things coulda happened. Considering your electrode broke off, it could have scratched the cylinder wall, damaged a valve, head, or maybe your rings are worn. A leakdown is a more precise test. Do that and let us know the outcome.
and the oil on the plug, is it on the actual spark side of it that sits in the combustion chamber or where the coil plugs into?
and the oil on the plug, is it on the actual spark side of it that sits in the combustion chamber or where the coil plugs into?
#5
i changed the coil order and moved the coil to cyl # 4. the computer said misfire on cyl 4. then i left the same coil but changed the boot with cyl number 2 and the computer said misfire cyl 2. i bought the boot that can be bough at a parts store (from $21 to $25) and the car worked just fine.
im just concerned the motor got damaged because of the broken electrode.
the oil on the spark plug of cyl 1 and 2 was on the coil plugs into. the coil, the boot and the spark plug were full of oil. the other spark plugs of the other cyl were clean.
im just concerned the motor got damaged because of the broken electrode.
the oil on the spark plug of cyl 1 and 2 was on the coil plugs into. the coil, the boot and the spark plug were full of oil. the other spark plugs of the other cyl were clean.
#6
Thread
Thread Starter
Forum
Replies
Last Post