Problem with revs cutting out around 5500rpm

[Nick325is]

Is this the speed sensor everyone is referring to? Bavauto has it for 85 dollars.



Nick

[e9nine]

That looks like it, take a look at the Bentley , it shows u how to test its resistance and what to expect. You can also try cleaning it. Sometimes crud gets on them ....

[OOMPH!]

Speed sensor ?

I'm thinking same, either motor flywheel sensor, or flywheel it self is cracked or damaged.

(00MPH!) George had similar problem, we switched AFM/ICV, new wires, tune up, switched ECUs still nothing, so it turned out what I just mentioned.

:nice: thanks to your help Amirani......Yeah Nick, I had a very similar problem. Check the crankshaft sensor and the crankshaft balance. In my case, the crankshaft balance was cracked and causing vibrations......check that stuff out. Good luck

[Nick325is]

Thanks for the help. Time to go check this stuff out once I am home again. Something tells me I am not going to be looking forward to it. :(

Nick

[skat 325is]

Is this the speed sensor everyone is referring to? Bavauto has it for 85 dollars.



Nick

thats the one :)

let us know ifyou find out whats wrong

[Nick325is]

Oh how hard is thing to change? I have limited tools at school . Any idea how long it would take? I really need to order a bentley.



Nick

[franz]

I recommend swapping the main relay.

[Giorgio]

Don't know what the problem is, but I got the 5500RPM lean buck when I was working on an MAF in my car. It wasn't 100% consistent though IIRC
hth
-Bryson