Question about 2002 Pontiac Grand Prix
I would hope that's all there is to it but I've been driving it for several hundred miles between emissions tests. I believe the ECU isn't resetting like it should. I've replaced the usual suspects like O2 sensors, Spark plugs (all 6), cleaned EGR valve and even cleaned the engine!! Any other advice??
Posted on Dec 11, 2009
Nope, you just need more miles. When the car's computer has been disconnected from power (such as when the battery is unhooked), it'll set what are called "readiness codes" when power is reapplied. It takes a certain number of miles to clear these - some cars require 50 miles, some 100 miles, and some (such as some Isuzu models) need very specific drive cycles to clear them. Once the requisite number of miles have been driven without issues, the readiness codes will extinguish and your car should pass.
Posted on Dec 10, 2009
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
Here's a link to this great service
Posted on Jan 02, 2017
Tips for a great answer:
Nov 09, 2016 | Cars & Trucks
Aug 12, 2014 | 2000 Pontiac Grand Am GT
Oct 09, 2013 | Pontiac Grand Am Cars & Trucks
Jan 24, 2012 | 2002 Pontiac Grand Prix
Mar 20, 2011 | 1999 Pontiac Grand Prix
Sep 07, 2010 | 2002 Pontiac Grand Prix
Nov 16, 2009 | 2002 Pontiac Grand Prix
Feb 24, 2009 | 2002 Pontiac Grand Prix
Oct 09, 2008 | 2005 Pontiac Grand Prix
689 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: