Good morning guys.
I've got an 89' GT with some idle issues. Did a KOEO and KOER test and pulled a few codes.
21, 31, 41, 82, 44, 94
The engine is a stock 5.0 block, B303 cam, Excel coil, AFR heads, Comp-cam rockers, TFS Street Heat upper and lower intake, A/C delete, Smog pump is...