BECOME A MEMBER
Sign up with Facebook
I agree to the
Login with Facebook
NOT A MEMBER?
1994 GMC SAFARI
1994 Safari - New cat plugs wires cap rotor pcv clean oil nox high co high HC very low should be 735 is 145 New cat plugs wires cap rotor pcv clean oil.
have the same problem?
Monday, January 9th, 2012 AT 5:52 PM
Do you have an egr valve? With your mileage, carbon may be a factor causing the high nox.
What kind of cat did you use?
Please consider a donation if we helped you
Tuesday, January 10th, 2012 AT 4:42 PM
Problem was thermostat Stuck open engine running to cold for pcm's preference causing excess fuel problems.
Thanks, very much appreciated.
Wednesday, January 11th, 2012 AT 12:31 AM
to post a reply.
Ask a Car Question. It's Free!
Stalls After Dead or New Battery
Stalls While Driving
Find a car manual for your car
© 1999 - 2017 2CarPros, Inc.