My wifes 99 2.7 intrepid was just rebuilt by my brother. But, for some reason, its idling rough and appears to stall/misfire during acceleration. (<---I'm not sure how to describe it except it falls on its face every 5 to 10 seconds but runs perfectly smooth between with no apparent missout) What doesn't make sense is that when he unplugs the cam sensor, it runs smooth and the stalling or misfiring stops. Unfortunately, it won't run over 2500 rpms with the cam sensor unplugged...which by the way is new. No codes being displayed except for #6 cylinder, and it was due to the injector plug being disconnected. Any ideas?