well i got all codes figured out except for my code 66 now i know what it meens and all i have checked between pins c/d and get .5 v and betweeen pin a/b and get a little over 12.v....so is it the harness or is it the meter itself i also have replaced the electronics on top of the meter with another one from my buddys car and it is exactly the same i do have a fendermounted cold air intake...could that also with it unplugged the car idles fine....just trying to figure out what to buy.....also got a engine coolant temp code but ill get one fo those i doubt it could cause my maf to go bad.,..