REP with Direct Port Nitrous??

[gofish7]

The setup is in a 2004 Tahoe with a 4L80e Frost harness. The throttle body is a TBSS with a x-link. The engine is a 408 with everything done to it. On N/A, the engine does not go into REP. However, during the direct port which has it's own fuel system with 116 in it, the truck goes into REP and shuts everything down. He is trying to spray a 300 shot on a Proflo intake. Reset the system and everything is back good again on the N/A setup. All TM and ETC settings have been maxed out or disabled. Attached is the tune, is there anything else we could be missing that would cause this? The MAF is a LS7.

Thanks!

[edcmat-l1]

What code is it setting? Probably need to scale it just like an FI car.

[ElecTech]

How is he activating the nitrous?

[gofish7]

What code is it setting? Probably need to scale it just like an FI car.

All tables are maxed out in the Eng Diag to 4.10 and MAF is also maxed out as well.

We did some more testing and it does not do it in 2nd gear, only first like it exceeds the power rating or if he looses traction then it sets the code immediately. However, all traction control and stabilitrac items are turned off.

[gofish7]

How is he activating the nitrous?

He has it on a button. I've been trying to get him to put it on a progressive system but he has the IAT mod that pulls 6 degrees of timing. He is running 8 degree plugs with a .024 gap I believe.