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ARF Readings
I got the P0171 and P1171 codes. Running Stage 2 E85 tune for a while now but recently swapped catback. Re-flashed the tune, but saw AFR is at 20% while idle and LTFT is at 15%.
I also did the sound generator delete. Thinking it could be the intake, I tightened the intake plug (was kind of loose). Is this normal or do I have an exhaust leak? Already reset the codes. |
Check you actually flashed to e85 tune and not petrol tune make sure its latest oft v4 tune ie doenload it from site
Check for exhaust or intake leaks |
We're you completely empty? Sometimes it takes a mile or 2 to fully get rid of all the remaining 91/93. Drive it like a grandma till you see your fuel trims stabilize. Also do what Steve recommend above as well
Sent from my GM1915 using Tapatalk |
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