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I don't remember your original post, and did not take the time to dig it up.
If you are consistently flagging a specific cylinder on the misfire, and you've swapped coils and plugs around. If you think it's an injector problem, swap the injector from the missing cylinder into a cylinder that doesn't flag a misfire. If the miss follows the injector then you can narrow it down to that component. If the miss continues to be on the same cylinder then you either have a pcm issue controlling the spark or injector (would make sense on a consistent misfire but not so much a one that's primarily at idle or under load, IE certain conditions), or you have a mechanical problem with that cylinder, a burnt or warped valve, compression low, damaged piston, etc.
Using a systematic approach to diagnosing your problem will help to keep you from just throwing parts at the issue. At some point you will may hit a brick wall and either take a SWAG (sophisticated wild ass guess, as one of my tech seminar instructors always said) or have to break down and take the car to someone with more experience/equipment to better diagnose the problem.
It can be very frustrating, I do this for a living daily sometimes it would feel better to pound my head into the concrete than to keep fighting a bastard problem.
If you are consistently flagging a specific cylinder on the misfire, and you've swapped coils and plugs around. If you think it's an injector problem, swap the injector from the missing cylinder into a cylinder that doesn't flag a misfire. If the miss follows the injector then you can narrow it down to that component. If the miss continues to be on the same cylinder then you either have a pcm issue controlling the spark or injector (would make sense on a consistent misfire but not so much a one that's primarily at idle or under load, IE certain conditions), or you have a mechanical problem with that cylinder, a burnt or warped valve, compression low, damaged piston, etc.
Using a systematic approach to diagnosing your problem will help to keep you from just throwing parts at the issue. At some point you will may hit a brick wall and either take a SWAG (sophisticated wild ass guess, as one of my tech seminar instructors always said) or have to break down and take the car to someone with more experience/equipment to better diagnose the problem.
It can be very frustrating, I do this for a living daily sometimes it would feel better to pound my head into the concrete than to keep fighting a bastard problem.
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