12/05 production M5 w/70kMI. Don't think it falls into any TSB's.
Engine won't rev past 1,000rpm...!!
271A Vanos Control Intake Bank 1
271C Vanos Control Intake bank 2
27A9 Crankshaft Sensor
2B57 Safety Concept Manager Action
According to my pressure gauge, the Vanos can't even get up to 400psi. That's after it gets warm, at cold start it sticks around 50psi and idles erratically between 500rpm to 1,000rpm and keeps shutting off until it gets a little warm then it will hold steady around [email protected]
only. It will only stay smooth running after it warms up to operating temperature. When its cold I have to keep pedaling the gas to keep it running until it does get a little warm. I believe at a warm Idle the Vanos should be more than 1,000psi. I see no external oil leaks.
Is it my VANOS PUMP, ACCUMULATOR, INTERNAL HIGH PRESSURE LINE, CLOG SOMEWHERE or both bank SOLENOIDS ? I already swapped the DME-no help-same codes.
I am consistently getting "Vanos control" and "Crank Shaft" code. As far as the "Crank Shaft" sensor code (I think my flywheel is bad causing a one of stray signals in the wave. One of those stray signals probably for the TDC gap in the flywheel teeth-the other probably broken tooth somewhere). I have replace the Crank Shaft sensor twice with OEM-code still there.
Regardless of the Crank Shaft sensor code (I know if there is no signal the car would not even start), I should still be seeing my Vanos pressure over 1,000psi when it gets steady at warm idle?
Crank Shaft sensor signal:
Not gonna show all the "angles" it fails after this step...
Im even lucky enough to get some Camshaft Sensor codes once in a while too. (2737,38 cause I got the intakes off)
Youtube video shows what happens during the Vanos Test. I ran the bleeding procedure three times, no help. After it gets warm and the idle it smooths out It wont go above 270psi. I try to give it gas and it just wont go above 1,000rpm. I know my gauge only goes up to 400psi, but that's all I have right now. Don't know what else to do to narrow down the problem??
IDK if this has anything to do with anything, but i also got clutch issues: