My Z34 failed emissions, too much NOx. I've heard its either bad cat or EGR problem, and I do have a code 32 (egr). Any suggestions on getting it to pass? I don't want to just throw an EGR on it and go get it tested again, because I only have one free retest. MA is so F-ing stupid about emissions testing. If your car has a bit of dust on it, FAIL, does the owner have bad breath? FAIL, have you passed gas in the last week? FAIL. Jesus H Moses its an 11 year old car, relax, worry about all the frickin SUVs not poor little W-Bodies.
Any help would be greatly appreciated - tom