Recently installed supercharger. Running rough at idle. Checking fuel trims and at around 25% both banks at idle only.
Took it to a popular viper tech and can't find anything mechanical wrong with it.
Checked computer today and put out a p0622 code. Viper tech said if voltage is within in range (which it is) the PCM needs replacement.
Anyone else experinece this? How can I be sure PCM is bad?