2007 corvette LS2 throwing codes Noob

[Braciole]

Im a noob guys go easy! LOL.
I have a 2007 C6 LS2 6mn Z51 3LT
The mods I have are in my sig.
Since I put the Ported Fast 92 with new HP Tune
Its throwing 3 codes
Throttle peddle PO121
Catalyst system PO420 Bank 1
and PO430 Bank 2
Efficiency below threshold
Whats the remedy? should I just turn off the rear o2s??
What about the TB??
Thanks in advance
Mike

[Braciole]

Anyone???

[flea]

Im a noob guys go easy! LOL.
I have a 2007 C6 LS2 6mn Z51 3LT
The mods I have are in my sig.
Since I put the Ported Fast 92 with new HP Tune
Its throwing 3 codes
Throttle peddle PO121
Catalyst system PO420 Bank 1
and PO430 Bank 2
Efficiency below threshold
Whats the remedy? should I just turn off the rear o2s??
What about the TB??
Thanks in advance
Mike

Set P0420 and P0430 to no error reported. Leave SES "checked", with no error reported the light will not come on anyway.

For P0121, set min ECT to a value you will never see, like 400. Set max ECT to -40

[BBA]

Hope you don't have emmissions testing. What's the 'sick spin monster tune' all about?

If nothing else, you could always build an op-amp circuit to increase the voltage swing of the rear O2 sensor so the PCM will think it's sensing a change.

[Braciole]

Thanks so much for the help!
Hes a friend from the corvette forum
Gave me alot of help
He drove from Long Island NY to turnersville NJ 180+ one way
arrived 1am to help tune my vette
hes one of the most knowledgable people in the business
Mike