Quote:
Originally Posted by BlaqWhole
For a day and a half and then reinstalled it. And then I reprogrammed it to make sure it was starting over. After it programmed I took it for a long drive and no more problems.
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As far as the VTC, while I haven't had any issues as of yet, installed in January. It seems that those that have issues find them resolved by recalibrating it. The calibration step is critical. When I installed mine, at first it didn't seem to do what the instructions said it should do. So i unplugged and reinstalled, then it worked as described.
To the OP, if you were having an issue before the VTC, it's probably not the VTC. However, the VTC could be, not sure, amplifying the problem. So I would remove it and find another shop. The code should show clearly which cylinder is misfiring. I too am thinking coil pack, I replaced one on my old STS and a friends old CTS (pre DI engines). His was completely gone and mine was intermittant.