2001 Toyota Sienna Repair Question
Topics covered: Miscellaneous.
Mileage: 270,000 miles.
Mileage: 270,000 miles.
Asked on December 19, 2012
Toyota Sienna Problem
I have P0420, and the original ECM.
If I were to go to a junkyard or Pick n Pull, how would I know if the used ecm was one of the ones with the updated ones with a good program?
If I were to go to a junkyard or Pick n Pull, how would I know if the used ecm was one of the ones with the updated ones with a good program?
Asked by (pending member)Answer
Replied on December 19, 2012
never use a used pcm as it is flashed to another vehicle and will come up with a vin mismatch and all kinds of issues.
420 is a failed cat and needs to be replaced. not the pcm
Roy
