The Throttle Position Sensor can get out of adjustment due to wear in the throttle body or due to carbon build up. This will cause the idle timing to advance more than 30 degrees which will cause very high HC and NOx emissions. Conversely, the Throttle Position Sensors can wear out and not properly advance the timing which causes a lack of power and poor fuel economy.
Driveability Concerns Due to Throttle Position Sensor Out of Adjustment on Toyota Avalon
3 people reported this problem
0 people shared problem details
I have a Toyota Avalon (2001). It stalls sometimes when I am on the highway, then it picks up s...
can anyone answer this please,
just bought used 2001Avalon.havent had2wks&check engine lite came on.Reads Code PO446!its blowi...