U0115 U0100

[08monster]

I have an sct livewire and ive had the extreme tune on for a couple weeks and running great. Yesterday it was like it lost all power and had the codes, U0115 and 2 U0100s. I returned back to stock and then back to extreme and it ran good for about 10 mins. Now it wont take a tune at all except for stock. How do i fix this problem?

[08monster]

I found out whats wrong. When i bought my tuner, I just got the dpf delete pipe. After running for a couple weeks on extreme tune, the cat got clogged up and when it hits 40 psi the exhaust cant get through the cat and the egt tops out immediately and goes into limp mode. If your truck is stock and you buy a tuner and dpf delete kit, GET THE CAT DELETE ALSO!!! I ordered the cat delete today. My truck will soon be full 4 inch straight pipe. It currently still runs with the extreme tune but i cant nail it or else it goes to limp mode for a minute or two. Hope this post can help some of you guys

[strokin07]

How hot were your egts getting?

[08monster]

It would peg out the limit on the tuner

[strokin07]

So how hot is that. 2000*, 1800*?

[08monster]

My tuner maxes out at like 1760, so no tellin how hot it gets. 1300 is time to worry. I don't think it really got to 1700. That's why I think the sensor is messed up

[strokin07]

Ok. And yeah im sure you got to 1700. I've hit around 1750 before.

[08monster]

Really? That's crazy!!! How long has your truck been tuned? And do you have full straight pipe?

[strokin07]

Been tuned for 37k. Full 5". That was with a livewire and the KEM 250 tune.

I now run a minimax with hd300. Doesn't get that hot

[08monster]

Im running an sct livewire extreme with just the dpf delete right now. My cat delete should be here in a couple days and hopefully those temps go down and it stops going to limp mode when i nail the throttle