Having problems with your 1998 GMC Safari ?

Code p0240 is present, have new convertor and code still there

Posted / edited by AnonymousUser on : 24-07-2017

Answers :

Do you mean 420, because alot of times the code does not directly indicate the cat is bad. other factors have to be ruled out before replacing the catalytic converter. Expensive mistake when you skip getting it diagnosed correctly.
\015\012 But since you did replace it your suppose to have the light turned of with a scanner or code reader if you didnt do it yet. The light will take up to a month to shut off if it doest see the problem again if you wait.
Repair Help & Product Troubleshooting for 1998 GMC Safari

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