Questions tagged [m5]

2 questions
23
votes
1 answer

LTFT and STFT values are off and don't make sense

Car is a 2015 BMW M5 and it has an aftermarket CAI and a catback (slip on) exhaust. No other performance mods or tunes. About 6-7 months ago, I bought a Kiwi OBD-II reader, simply out of curiosity as I am a computer guy and a geek and was curious…
DerStig
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12
votes
3 answers

Cold air intake causing rich condition

This is a follow up question to my initial question which can be found here : LTFT and STFT values are off and don't make sense Car is a 2015 F10 M5 Mods : Cold air intake, aftermarket rear muffler (just section 3). Since posting the initial…
DerStig
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