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JB3 limp mode :(
yesterday i was merging onto the freeway going about 50 in 4th gear, i proceded to give it some gas and when it got to aroun 3200 rpms, the engine bogged out and the whole car shook with a check engine light appearing on the dash. I pulled over, restarted the car on map 0 instead of map 5, which i was running when the incedent happened. The car started up fine with no check engine light or SES light. I proceded to drive home only to find out that even on stock mode, around 65 mph the car began to studder A LOT and would bog down throwing the light again. I removed my JB3 and scanned the car for codes, these were the codes that were thrown:
2AAF:
2AAF Fuel pump, plausibility
Error will not cause a warning light
Error is not currently present
Test conditions have been completed
Short circuit or signal interruption
Freeze Frame Information
Event 1Odometer 1176kms 730miles
fuel pressure before mass control valve 0.00 hPa
Engine speed 0.00 rpm
voltage Kl. 87 0.00 V
injected mass of fuel 0.00 l/h
Event 2Odometer 1248kms 775miles
fuel pressure before mass control valve 4,924.64 hPa
Engine speed 2,784.00 rpm
voltage Kl. 87 14.02 V
injected mass of fuel 0.00 l/h
Event 3Odometer 1736kms 1078miles
fuel pressure before mass control valve 5,561.44 hPa
Engine speed 3,840.00 rpm
voltage Kl. 87 14.02 V
injected mass of fuel 0.00 l/h
2D18:
2D18 manipulation cover, maximum air mass
Error will not cause a warning light
Error is not currently present
Test conditions have been completed
Short circuit or signal interruption
2FBF:
2FBF Fuel pressure at injection release
Error will not cause a warning light
Error is not currently present
Test conditions have been completed
Short circuit or signal interruption
Freeze Frame Information
Event 1Odometer 2176kms 1352miles
rail pressure 6,792.59 hPa
PWM-Signal of mass control valve 62.11 %
voltage Kl. 87 11.07 V
fuel pressure before mass control valve 5,476.53 hPa
29DC:
29DC Cylinder injection switch-off
Error will cause a warning light
Error is not currently present
Test conditions have been completed
Short circuit or signal interruption
Freeze Frame Information
Event 1Odometer 2424kms 1506miles
Engine temperature 103.50 °C
air mass calculated 824.73 mg/stk
Engine speed 3,168.00 rpm
fuel tank filling level 31.00 l
I cleared all the codes afterwards, took it for one more drive, was able to throw the same codes without the jb3 connected, then i drove the car to the BMW dealership and now I'm awaiting to hear what the problem is.
Does anyone think they have an idea as to what is going on? has anyone ever experienced this problem with their JB3? or maybe just their car in general?
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