ok..so my 88 7mtge runs fine intill it goes into close loop then the check engine light comes on and the car idles fine but has problem revvig but makes boost and smells really rich...it runs like it just sat over night and not warmed up..the codes were starter signal, throttle posistion sensor, knock sensor and switch signal... 41 43 51 52 53 anyone have this problem or can help me please???