Recently I have been getting knock sensor codes from both sensors for several weeks. I have a code reader and have been clearing the codes and noting my driving when they come back. I noticed that the check engine light comes on when there is no load on the engine as in going down hill. There is one down hill grade that I can make it come on by taking my foot off the gas quickly.
I have been looking at the forums for weeks and have found nothing indicating why this would happen under deceleration or no load situation.
have the same problem?
Monday, April 25th, 2016 AT 5:24 AM