Misfire issue
10-25-2023, 05:30 PM
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Misfire issue
I have a 1990 with an ebay turbo kit and recently it has given me a problem
Whenever I hit boost I barely get any power before hitting a misfire (all happens between 4 and 5k rpm)
I smoke tested all of my vacuum lines and fixed the leaks that I found and the car was back to normal for maybe a week before the problem showed up again. I tried replacing the ignition coil but that just made it worse, I checked my spark gap and it was fine, made sure I was running the right plugs, vacuum tested again and found no leaks. The only progress I made was retuning my ignition table which gave me just a bit of power back at 30 degrees. Im not sure if I should add more ignition advance or if its some other issue thats causing it.
Has anyone else experienced this or have any idea what could be causing it?
Whenever I hit boost I barely get any power before hitting a misfire (all happens between 4 and 5k rpm)
I smoke tested all of my vacuum lines and fixed the leaks that I found and the car was back to normal for maybe a week before the problem showed up again. I tried replacing the ignition coil but that just made it worse, I checked my spark gap and it was fine, made sure I was running the right plugs, vacuum tested again and found no leaks. The only progress I made was retuning my ignition table which gave me just a bit of power back at 30 degrees. Im not sure if I should add more ignition advance or if its some other issue thats causing it.
Has anyone else experienced this or have any idea what could be causing it?
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