0300 misfire after header install
Thread Starter
11 Second Club
Joined: May 2003
Posts: 764
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From: Glasgow, Ky
0300 misfire after header install I helped install a set of dynatech headers, Taylor 10mm thundervolts, and a new set of NGK TR55's on a stock 98 Camaro. The car is running like crap, and giving a 0300 misfire code. After the advice of my local tuner I checked to make sure all the wires were a tight connection, there were some that were loose. So we unplugged all of them and started all over, and it's still giving the error. Anything I could be over looking?
Thread Starter
11 Second Club
Joined: May 2003
Posts: 764
Likes: 0
From: Glasgow, Ky
Originally Posted by 2xLS1
Real O2 extensions or cut and splice?
Originally Posted by 99FormulaWs6
Real extensions, but that brings up another point, one of the 02's came unplugged and got wet...helpful hint #1: Always check your connections after an all nighter header install..Would that cause an 0300? I figured if that was it, it would have caused an error in the 02.
More than likely.. Once when pulling the tranny I got a little oil on the O2 sensors and the engine ran like ****! It is amazing how shitty it will run if the O2 is not running up to par.
