This vehicle came in for an itermitant ignition miss fire we could not duplicate, during inspection we found the entire ignition system has been modified from original! It was converterted from an OE Opti Spark system to a intigrated coil and module system like a North Star Cadillac, We scanned the system found a code for miss fire on one of the modified coils and reccomended replacement, after installing the coil vehicle was driven for 12 miles and no issues came up duing the test drive! We will do what ever is necessary to help but everyone needs to understand this vehicle has been modified from original equiptment, we have no way of knowing if the aftermarket non OE ignition system is even compatible with the vehicles computer system! But were willing to help anyway we can. These findings were explained to the customer before returing the vehicle.