ok, so my car is still jerky when driving, mainly always just when cold.
ive noticed that the boost guage drops and there is a little pop from the exhaust when it does it, but sometimes is just jerky when driving.

i am using the apexi avc-r boost controller, and this uses its own boost solenoid. however, to eliminate the 'engine check light' on the dash, i have had to leave the factory boost solenoid connected (electric wire only, not boost pipes etc).

would this be a possible cause of the problem?

just thinking of problems, its annoying me

cheers
ian

 

Don't think so.

 

thanks John

 

Def not, mines just sittin there plugged in doin nuthin.