hey I own an 87 Trans Am and an Auto Xray scan tool I got from checker and was wondering what some of the values are *supposed* to be at. like for example, I found out on a previous thread that the park/nuetral setting on the scan tool is reverse: says not detected in park or neutral and detected in drive.. the other values I had questions with are the EGR and CCP % values. I recently failed emissions for NOx which I am told is commonly EGR failure, but my scan tool shows egr % @ 99 part throttle and goes back to 0 WOT. is this correct? also CCP shows building percentage in increments of about 3 % at part throttle. the last setting I am wondering about is MAP sensor because I don't have one I have MAF and it only says 2-3 volts usually. any help on this is appreciated.

 

alright well doesn anyone know what ANY of the values are supposed to be at??... the new one i am wonderign about is Air Divert and Air switch settings. I think my air switch solenoid is bad cuz it always says off but air divert says on till wot.