1st log of the issues on the x3 m40i (power wise)
This is the first log of the power issues with the x3 m40i (b58 gen 1)
98 Octane
Power issue stage 2 hpfp x3 m40i gen 1
Very odd torque and power issues. E40 of this tune doesn’t have a huge effect as it use to and 98 seems to be pretty lack luster as if it had a boost leak but doesn’t look like it but does have timing corrections which it never use to. Blocked catalytic converter after downpipe maybe??
Map 2 m240i g42
Log 1752676132
Test Log
Felix june 15 data
TunerPro Engine data log recorded on 06/15/2025 13:37:14
inowrocla v10
Stage 2 4th gear pull
Stage 2
Downshifts problem, on higher RPM when downshift car jumps forward