ppvsteve

Just for future folks that come across this problem. GM put out a bulletin on this situation and indicated the ECU does not even try to run certain monitors until the car has driven 1500 miles. They do this to allow the Cat's to sort of "break in" In other words they did not want people that just paid $50K for a car to get a check engine light in the first 1000 miles because the cats were still not reading correctly. This was of course never a problem in most states except CA that required out of state cars regardless of age to be smogged. And it was traditionally never a problem in CA because who would in thier right mind go to the next state over to purchase a new car when we got them in CA!! Well until the market went sideways. Other manufacturers follow a similar pattern, talked with a guy that brought a new Honda Odyssey from Ohio and had the same issue.

Hey Manuel have you done anything on this yet?

This question is still unresolved in CA. I have report of one person with a DOD delete and a tune get through the CA smog check after July 19 2021 (when the ECU testing began ) . See pic below. Problem is this example is on a very limited production car (Caprice PPV) so it is possible there was not enough data gathered by the BAR to make a determination on that car. I thought once this program went into effect I would have heard from all you truck guys who have been deleting DOD for years. There should be plenty of data on the trucks. Thought I would see the posts of all the failures on message boards but I have not seen a one!! Has anyone in CA failed for MODIFIED SOFTWARE ?? My suspicion is the data showed that so many cars and trucks with AFM/DOD had all these different CVN check digits so they might just be ignoring all GM vehicle with DOD/AFM engines. Because I did find one corvette that failed for Modified Software but those do not have the AFM. So all that being said you can risk a bigger cam and a tune if you want. Not sure if they are actually ignoring AFM engines how long they will continue to do so. Or you can go with a CARB approved DOD delete kit that comes with a tune that is CARB approved. Down side is basically this is a stock swap so no performance gain. $1000 in parts and no HP gain. Hard pill to swallow. Livernois sells the kits Here is the one for a 6.0 liter https://www.livernoismotorsports.com/product/LPP802116/livernois-motorsports-06-gen4-6-0-6-2l-dod-delete-system-for-non-vvt-engines