Failed smog check, need some input
I would say yes, but since you live in a warm climate, they may not sell it. I live in MI, so during the winter, you can find it anywhere. Good luck
Ok i got some today, but the only thing i am interested in lowering is the NOx
will iso-heet lower this number? Or could it possibly lean me out and raise this number??
will iso-heet lower this number? Or could it possibly lean me out and raise this number??
Do you have to pay for the extra tests? If not, you should probably just go take a spirited drive to heat the cats and see if that plus your new O2s gets you by the mark.
You cannot accurately diagnose a smog failure without taking the other numbers into account, did the HC's drop below Average or are they higher than average, are the CO's low or high? It seems like you are running in circles because you are listening to backyard mechanics. I have smogged many cars, some that have sat and cooled off before a test, even OVERNIGHT and I have came in at 8:00 and they passed, it's not because the car isn't hot enough. High NOx is caused by anything from high combustion temps, EGR failure, CAT failure, a lean condition, etc. An EGR solenoid can be mechanically functional but electrically bad. It needs to be commanded open with a Scan tool before you can determine that it is bad, or good. My GUESS is a bad EGR, but it could be a bad cat. It cannot be determined without the proper tests and without seeing the ACTUAL VIR (Vehicle Inspection Report).
Matthew
CA Licensed Smog Technician
Matthew
CA Licensed Smog Technician
