since i bought the car it has had a idle surging problem. i ran codes today to see if i can shed some light on the situation. the car is a 1993 4 cyl to v8 swap, 5 speed, tfs-1 cam, gt40 intake, exhaust, 24#, MAF, 70mm TB. it was surging before and after i swapped the aftermarket stuff. (it was...