earlier this summer i started getting a misfire, my wagon has 140k miles on it. i have replaced the spark plugs, wires, coil, and opti, but i am still getting a misfire and code p0300 (random misfire detected). im puzzled on what more it could be, could the ecm be bad? or am i missing something
Krzdimond Admin
Posts : 3412 Join date : 2008-11-04 Age : 57 Location : Savannah, GA
Subject: Re: misfire problem Sun Sep 01, 2013 10:04 pm
The P0300 for me got worse and ended up being the Opti..... Did you replace with the Delphi, or a Chinese knockoff....
Guest Guest
Subject: Re: misfire problem Tue Sep 03, 2013 11:17 am
i went to napa and got an ecklen (i think) cap and rotor and got a remanufactured opti from napa too
Limited1
Posts : 55 Join date : 2011-08-23 Location : NE Ohio
Subject: Re: misfire problem Wed Sep 25, 2013 9:00 pm
I got that code on my old 96 Impala and it was a plug that went bad. Then another time on that car one of the plug wires randomly touched the header and made that code show up.
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Sun Sep 01, 2013 7:33 pm
