p0430 AFTER The tune was installed

[bhamer]

Good day all,

I am wondering if anyone else has experienced this problem. I recently had to replace the y-pipe on my 15 Silverado due to a left bank failure. I put in a new y-pipe and 4 O2s just to be safe(truck has about 135k on it). Within a week the cel came on with a P0430. I cleared it, and then within about 100 miles it came on again. I have reset the CEL 4 times now, and every time it comes back.

Well I had to make a little road trip 2 weekends ago , so I figured I would reset the PCM to factory. and the CEL has not come back on at all.

The only things changed on the "tune" was, I deactivated the DOD/AFM, firmed up the trans shifting, and changed the tire size.

There are no leaks that I can tell from the exhaust, and the truck is running normally.

Any Ideas?

[mikel]

Try reloading the tune and see what you get?
To me it sounds like they were aftermarket converters that flow more than stock and may be leading to a false P0430 code.

[bhamer]

Thanks Mikel
You are correct, they were an aftermarket replacement. I did get them replaced under their warranty, due to the CEL coming back on again.
If that is the case, what do you guys charge for a custom tune to turn the O2's off?

[mikel]

Turning off rear O2s is a bad word, we don't do it

[bhamer]

Got ya Mikel.

Who would I contact for a custom tune for so performance upgrades?