P0300 Trouble Code
Thread Starter
Le Mans Master
Joined: Dec 2001
Posts: 5,761
Likes: 1
From: Irvine CA
P0300 Trouble Code
Just my luck when I needed to take the C5 to get smogged, the dreaded trouble code showed up. I kinda have a hint since the car was behaving out of its normal tip top shape. Pulled code using the Predator and sure enough, misfire is the reason it hesitates and has rough idle.
Im suspecting foul plugs, but at 25K, shouldnt the stock plugs last longer than that? My car is not a daily driver and it does not see competition. Just your usual spirited driving on weekends.
Im thinking of changing the plugs and maybe wires since Im at it. Anybody use MSD wires? I have a set of NGK TR55s to replace the stock plugs on order. I do, however, have a set of TR6s in the garage I picked up from another forum member. Will it work for my stock application?
Im suspecting foul plugs, but at 25K, shouldnt the stock plugs last longer than that? My car is not a daily driver and it does not see competition. Just your usual spirited driving on weekends.
Im thinking of changing the plugs and maybe wires since Im at it. Anybody use MSD wires? I have a set of NGK TR55s to replace the stock plugs on order. I do, however, have a set of TR6s in the garage I picked up from another forum member. Will it work for my stock application?
Thread Starter
Le Mans Master
Joined: Dec 2001
Posts: 5,761
Likes: 1
From: Irvine CA
Originally Posted by vettenuts
Tr6's might be a little cold for a stock motor. I would do plugs and wires and see if that takes care of it. Could even be bad gas.
I will go with the TR55s after I fill up with new gas. I just cant believe my plugs went bad too early.
Melting Slicks
Joined: Aug 2004
Posts: 3,003
Likes: 89
From: Indy IN
Most likely bad fuel.
Run out as much as you can of what you have in there and then throw in a can of dry gas. It won't hurt to oxygenate your fuel with a little extra alcohol when you are on doing the emissions test anyway...
Run out as much as you can of what you have in there and then throw in a can of dry gas. It won't hurt to oxygenate your fuel with a little extra alcohol when you are on doing the emissions test anyway...
Race Director
Joined: Apr 2004
Posts: 16,135
Likes: 5
From: Newberry FL
Cruise-In VIII Veteran
St. Jude Donor '07
Originally Posted by vettenuts
Tr6's might be a little cold for a stock motor. I would do plugs and wires and see if that takes care of it. Could even be bad gas.
Micah
