In a message dated 5/12/2006 2:33:53 P.M. US Mountain Standard Time, [EMAIL PROTECTED] writes:
Inspection time is here again. Last year, the inspection station failed my 300SE on the emissions test. I tried driving it out before returning for a retest and it failed again. How did another station pass it? Don't ask. How can I prepare for the emissions test this year? What are the possible causes? Can an oxy sensor cause an emissions failure? Is it necessarily the cat? What are the other possible problems? Les, Why don't you pull out your old inspection sheet and list the categories, the ones you failed, the allowable limits and what your car scored? Also, they usually have a help counter at the testing stations and they can give you some more detail about why you failed. I bet we can help. leaking fuel pressure regulators are a leading cause of over rich conditions that may fail your vehicle. Simple stuff like one time my breather hose fell off the intake piping and they failed me . Regards, Jim Friesen Phoenix AZ 79 300SD, 262 K miles 98 ML 320, 142 K miles
