CEL P2138 VTC

[Gee]

Originally Posted by gajagfan

Especially with ZERO performance gain.

Yeah. Ill stick with a good tune.

[camguynj]

Originally Posted by ǝɔᴉlod

SP9

Try SP0 for a week and see if you have any problem. If not then your car can't handle SP9 consistently. Try SP4/5 for a week at a time and see if any problems.