# 3 cylinder misfire? - Maintenance Forum

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# 3 cylinder misfire?
Saturday, January 05, 2008 2:56 AM
Yeah i have a 2.2 ecotec for a 2004 cavalier and I supposedly have #3 cylinder misfire code does anyone have any suggestions on why this is happening. Thanks

Re: # 3 cylinder misfire?
Saturday, January 05, 2008 10:01 AM
Whats the actual code, p0303? Could be a bad plug or wire.
Re: # 3 cylinder misfire?
Saturday, January 19, 2008 4:53 AM
Yeah, check your plug buddy


www.kronosperformance.com / 732-742-8837

Re: # 3 cylinder misfire?
Wednesday, January 23, 2008 11:35 AM
did u change your spark plug because I did and I got lot au misfire on all cylinder. I m back with the ecotec spark plug
Re: # 3 cylinder misfire?
Friday, January 25, 2008 2:21 AM
ok since Wednesday here in quebec it -30degree it cold no check engine at all thx Saturn Lévis and don t buy these:

http://cgi.ebay.ca/New-NGK-TR55-spark-plugs-GM-Ecotec-2-2-L-K_W0QQitemZ8036590482QQihZ012QQcategoryZ33693QQssPageNameZWDVWQQrdZ1QQcmdZViewItem


jon
Re: # 3 cylinder misfire?
Monday, January 28, 2008 6:28 PM
Hey well thanks for the info appreciate it
and sorry for the late response i deployed for a while
Re: # 3 cylinder misfire?
Tuesday, January 29, 2008 3:46 PM
update still got check engine with the ecotec spark plugs. next step coilpack
Re: # 3 cylinder misfire?
Friday, February 01, 2008 5:20 PM
ok man i know your the go to guy man its still over the #3 cylinder misfire i checked the plugs there ok i've only had them for 3 months and there ac delcos cuz thats what i here are best for the cavalier engines i have a question though could it be the 02 sensor making this happen? another question is it possible to get fined or a ticket for having a vibrant exhaust catback cuz i keep getting pulled or and spent to much to just change it back they say its to loud and i don't even have aftermarket headers?
Re: # 3 cylinder misfire?
Saturday, February 02, 2008 12:58 PM
update they change a part on top of me engine. this part is rigth to the ''ecotec 2.2'' emblem. they changes all 4 sparks plugs too
Re: # 3 cylinder misfire?
Sunday, March 09, 2008 10:07 PM
i had this problem with my 2003 sunfire 2.2l ecotec , it would give the misfire on cylinder 2 and 3 , i had to change the spark plugs and the coilpack , for some reason i gad to change them both
Re: # 3 cylinder misfire?
Monday, March 10, 2008 2:16 AM
Marian Belea wrote:i had this problem with my 2003 sunfire 2.2l ecotec , it would give the misfire on cylinder 2 and 3 , i had to change the spark plugs and the coilpack , for some reason i gad to change them both


The coil packs are known for going on these cars.


www.kronosperformance.com / 732-742-8837


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