I have a 97 honda accord. The check engine light is on and won\*t pass emmission. The code said egr valve. I have replaced the valve, tuned up the car, reset the codes and the light came bk on at 50 miles, had the ports cleaned and all connections reset codes and light came on at 63 miles. Still the same code egr valve / air flow insifficient. What should I do now, I did not replace the cylinoid for the egr but I am afraid to spend more money and the light still come bk on. I need to know exactly what I should do...thanks
It could be possible that you need the solenoid for the EGR, but they should have checked that before they replaced the EGR valve.
It's also possible that the hose is clogged. Again, they should have been able to find this all out if they did a proper diagnosis.
Did you take this vehicle to a dealership? You may want to take your vehicle to another shop or dealership. It sounds to me like they may not be sure what they're doing so they're just replacing parts hoping to fix the problem.
This is of course an inconvience to you and can also be costly.
If you have been doing the work yourself, it's important to follow all the steps in the service manual when diagnosing a check engine light.
There is a very comprehensive chart that makes sure the part is
properly tested before it is replaced. I would strongly suggest you get a hold of this service manual to do this work.
Hope this helps.
〉 Answered on Jun 12th, 2007 by Lori Johnson, Owner and Instructor at Ladies Start Your Engines