Mechanics

TOYOTA SIENNA PROBLEM

2001 Toyota Sienna • 270,000 miles

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?


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Guest
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

ASEMaster6371
Dec 19, 2012.