The error is as follows...
Hello everyone, I have been experiencing an intermittent issue with my 2008 Mini 1.6 HDi for an extended period.
3F6F air mass sensor, mass value implausible
Any attempts I have made to rectify the situation have proven ineffective.
I replaced the MAF sensor, but it made no difference.
Turbo is new; all intercooler piping and vacuum lines have been inspected or replaced, and the intercooler appears to be in satisfactory condition.
Replaced the boost solenoid
Replaced the inlet manifold along with new seals.
Installed a pre-owned throttle body and a new boost sensor.
This error is entirely arbitrary. I can drive 1 mile before it enters limp mode, or 150 miles till it enters limp mode.
Power cycling resolves the issue.
The only aspect I have not investigated is the injector seals, as there is no evidence of black death surrounding the injectors.
The vehicle has undergone DPF removal, EGR system deactivation, and has been reprogrammed and disconnected.
The vehicle idles smoothly, produces minimal smoke, and delivers excellent fuel efficiency.
Any suggestions? Thank you.