Got DTC code 420 and Check Engine light comes on. What does this mean? on 2000 Acura RL

Mileage is great, smooth running.

by in Houston, TX on June 30, 2013
Get Your Car Fixed at a RepairPal Certified Shop.
We certify shops based on expertise, quality work, and verified customer reviews
1 answer
ANSWER by , June 30, 2013
Engine codes.com