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Help us help you. By posting the year, make, model and engine near the beginning of your help request, followed by the symptoms (no start, high idle, misfire etc.) Along with any prevalent Diagnostic Trouble Codes, aka DTCs, other forum members will be able to help you get to a solution more quickly and easily!

07 wrangler jku 3.8l with P0300

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3 years 2 months ago #57352 by fvalck01
07 wrangler jku 3.8l with P0300 was created by fvalck01
Hello, after investigating I have misfire on cylinder 2 and 3. the compression test is good, between 205 and 210 in all cylinders. Swap spark plugs on those two cylinders. still the misfire on same cylinders. don't know what to do next.
Fred.

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3 years 2 months ago #57358 by fvalck01
Replied by fvalck01 on topic 07 wrangler jku 3.8l with P0300
Thanks, Monde. I forget to mention new plug wires and new crankshaft sensor.

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