I had a persistent P0446 code for almost 3 years, even after taking the car to Firestone and KIA multiple times to try to get it fixed. No one could figure it out, though they charged me dearly for trying. I decided to try Graham Auto Repair this time based on recommendations. They quickly figured out there was a broken signal wire from the ECM to a solenoid valve that was causing the code to set and ran a new circuit which fixed the problem once and for all. If I had gone to them first, I would have saved hundreds of dollars in failed emissions inspections and the "repairs" done by others that really didn't fix anything. I will be using Graham Auto Repair exclusively from now on!
Thank you Mike, we look forward to seeing you again.
- Graham Auto Repair