Dealer flash, now P0420?
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Dealer flash, now P0420?
Hi all -
A few weeks ago I took my car in to have the dealer reset my TPMS sensors for my winter setup. While they were doing it the guy tells me there is a "recall" for the AWC, and that because its a safety issue they have to flash the ECU. Now my understanding is the computer for the AWC is separate to the main ECU, but I was hesitant and told him that I haven't had any AWC issues and would prefer that they don't do it. He said legally they had to do it (which is bogus because they never sent me anything regarding the recall, and if I hadn't brought it in, they wouldn't have done it).
Anyways, long story short, I leave the dealership, and about 50 miles later my CEL comes on, throwing a P0420 code. I cleared it several times but it keeps coming back.
My 2 questions - 1) do you think they AWC flash may have caused it? It seems like too much of a coincidence.
2) I bought the Cataclean fluid to clean the catalytic converter. Does anyone have any experience with this product.
Thanks in advance,
A few weeks ago I took my car in to have the dealer reset my TPMS sensors for my winter setup. While they were doing it the guy tells me there is a "recall" for the AWC, and that because its a safety issue they have to flash the ECU. Now my understanding is the computer for the AWC is separate to the main ECU, but I was hesitant and told him that I haven't had any AWC issues and would prefer that they don't do it. He said legally they had to do it (which is bogus because they never sent me anything regarding the recall, and if I hadn't brought it in, they wouldn't have done it).
Anyways, long story short, I leave the dealership, and about 50 miles later my CEL comes on, throwing a P0420 code. I cleared it several times but it keeps coming back.
My 2 questions - 1) do you think they AWC flash may have caused it? It seems like too much of a coincidence.
2) I bought the Cataclean fluid to clean the catalytic converter. Does anyone have any experience with this product.
Thanks in advance,
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