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i have a 2004 mach 1 and i just replaced tranny and clutch and now the car is idleling high and acting like it has a small miss in low rpm or just cruizing speeds or slow take off any suggestions on what to do thanks!!!
 

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Bill A
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A 2004 should have OBD capabilities, have you done anything to disable the original ECM programming. The ecu should see a mixture out of control range or even a misfire. You might be experiencing a problem in the clutch or something like that. Typically the symptoms would seem like a lean misfire possibly caused by a manifold leak but you would have a check engine light if everything was working.
 
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