Extremely high LTFT trim. What's happening ?
 

It mostly happens during idle. I know normally it should be +/- 10% but this is way off. Anyone have any idea?
I have oft stage 2+ E85 tune . OFT catless uel header, Test pipe, N1 cat back, K&N drop in filter. Pretty much it. I would definitely appreciate any help I can get! Thank you! I have tried to reflash it, and it doesn't work. P0171 code showed up. As well as another code too but I forgot what code it was before I reflashed it. https://uploads.tapatalk-cdn.com/202...3a4068edfb.jpghttps://uploads.tapatalk-cdn.com/202...8a5274a8c1.jpg

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Update : as well as P2270 code.

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Exhaust leak near the header, maybe?

After the header or before?

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Your car must be stupid loud.

Anyway, did this suddenly happen or did you just flash it for the first time and this is happening? Need a bit more backstory. High LTFT can be caused by a few things.

Where did you get this tune from? OFT does not supply an off the shelf e85 tune for 17+ cars as far as I was aware. The only way to get it is to have one modified from a different calid.


EDIT:

Here you go. Same issue as you are describing.

https://www.ft86club.com/forums/show...=121767&page=3

Fix:

https://www.ft86club.com/forums/show...1&postcount=36

Problem fixed it was all because of big ass crack from the beginning of the header all the way to the pipe. Also, it crackked before the o2 sensor. https://uploads.tapatalk-cdn.com/202...17aaa321fb.jpg

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