Cylinder misfire can be caused by the following

• Faulty spark plug or wire
• Faulty coil (pack)
• Faulty oxygen sensor(*)
• Faulty fuel injector
• Burned exhaust valve
• Faulty catalytic converter(*)
• Running out of fuel
• Poor compression
• Defective computer

well next thing to check would be the injector, hopefully it wouldnt be the exhaust valve or a compression issue, beacuse I've checked the plug, wire, and coil pack

if all else fails I would try the computer after the injector with one I know was good on my car just reprogrammed for the SC

If you have a compression tester, I would check that.

I don't personally but I'm sure I can find someone with one

Didn't get around to checking the compression today, but I think its ok because once the car gets above 3000 RPM everything stabilzes and the SES light stops flashing so I think a little piece of something got into the injctor, I will get another from Morad tommorow and swap it

I had a GTP here the other week with a rough idle and a misfire. We scratched our heads for about a week. Turned out to be a broken valve spring. I like to find out what is not the problem, then what'* left is the problem. You know it'* not the ignition system. So that leaves the fuel and mechanical. Swap injectors and if the problem is still in the same place, then it'* not fuel, that leaves mechanical. Valve spring, burnt valve, bent pushrod, damaged rocker, or bad lifter.

Yah, if its in the valvetrain I'll leave that to the experts

got the injector from Morad yesterday, that was my problem

no more misfire on cylinder 1