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Message: <blockquote data-quote="02gt350$" data-source="post: 1553226" data-attributes="member: 31532"><p>Ok so I've just purchased ny first ever pair of mustangs one being a V6 convertible 5 speed and the other a 4.6 5 speed GT car. I got both of these for 700 combined and drove them home and I knew about this issue with the GT but was told it was a PCM issue. Well I found a local deal got a cluster pcm ignition keys and the plastic transponder around the ignition for 150$ but it still didn't fix my issue. I've tried swapping coils around checked all my spark plugs and even swapped them around but the issue persists and didn't change cylinders. I do know the previous owner put a new engine harness on it and it all seems fine so I'm really not sure what would make these cylinders not fire. I have injector pulse on the cylinders and 12v to the coil packs but no pcm pulse to the coils anyone seen this before? CEL Codes are p0354, p0355, p0356, p0358, p0135, p0155, p0141, p0161, p1131, p1151. I do know 4 of those are for 02 sensors and that's because the exhaust is missing its just on manifolds I do know it will run better with exhaust eventually but I'd like it to actually be firing on on 8 cylinders first any help would be great thank you also I have checked all my grounds.</p></blockquote><p></p>