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Downstream O2s 0 volts, No CEL, only history P0420
Posted to Technical Discussion Forum on 11/1/2016 15 Replies

Vehicle had a list of things to check, one of the items was check engine light was on but now off.

I went through the other stuff (bad axle and bad wheel bearing) then tackled the CEL. It had a history code P0420. Vehicle has over 200,000 miles.

The scan d... Login to read more.

15 Replies Received (View Replies)

 

car Vehicle Data

2008 Toyota Sienna LE 3.5L

Engine3.5 L
Trans5-speed Automatic (Electronic)

car Vehicle Data

2008 Toyota Sienna LE 3.5L

Engine3.5 L
Trans5-speed Automatic (Electronic)