What causes a motor vehicle not to pass an emissions test?
Friday, May 30th, 2008 AT 7:26 PM
1 Reply
MHPAUTOS
MECHANIC
31,937 POSTS
Hi there,
This can be caused by any number of faults, you may have a faulty injector, a faulty EGR valve O2 sensor, general tune fault. A scan and a full tune may help locate the problem for you.