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Hi Everyone!
My name is Chris from California. I just purchased a new to me 2009 451 Cabriolet. I bought it knowing it had a misfire, and assumed it needed valves. Much to my surprise the compression was 155+ in all 3.
As for troubleshooting I have moved the coils around to different cylinders, the spark plugs to different cylinders, and the injectors. No matter what I do the issue stays on cylinder number two. I checked the grounds down by the battery and back by the ECU. I ohmed out the wires for coil pack 2 back the ECU and they're all good.
The thing that I find interesting is it will run fine for about a mile or two then it will throw the code and begin misfiring an idling rough. If I turn the car off and restart it it immediately runs well until it happens again after another mile or two. I did let it idle for about 15 minutes issue free, then I went to test drive and it happened again.
I appreciate any help on this, it's really got me stumped.
My name is Chris from California. I just purchased a new to me 2009 451 Cabriolet. I bought it knowing it had a misfire, and assumed it needed valves. Much to my surprise the compression was 155+ in all 3.
As for troubleshooting I have moved the coils around to different cylinders, the spark plugs to different cylinders, and the injectors. No matter what I do the issue stays on cylinder number two. I checked the grounds down by the battery and back by the ECU. I ohmed out the wires for coil pack 2 back the ECU and they're all good.
The thing that I find interesting is it will run fine for about a mile or two then it will throw the code and begin misfiring an idling rough. If I turn the car off and restart it it immediately runs well until it happens again after another mile or two. I did let it idle for about 15 minutes issue free, then I went to test drive and it happened again.
I appreciate any help on this, it's really got me stumped.
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