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Discussion Starter · #5 ·
Throws engine fault light
Reduces power for awhile
Power comes back
Light stays on
In ecu stores an overev but it isn't overev it is wheel spin on bumps
It's too sensitive
 

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Phil
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241 Posts
I had this issue (firmware 8.2) on the road when changing up from 1st to 2nd at / near rev limiter RPM on bumpy ground which induces axle tramping / wheelspin - it's actually a gearbox sensor detecting the over-rev rather than an engine over-rev. I had to completely power of the car to reset the error. I reported it to McLaren B'ham who were aware of the issue - To be honest I'd hoped it would have been sorted by now as not only is it embarrassing but it's potentially dangerous to lose almost all power when you need it most!
 
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