Xoutpost.com - HELP ME PLEASE !

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Engine sounds fine. In neutral if you give it a rev. RPM rises much slower than usual when you floor it. Just lacking power? Got me beat

Idles and accelerates relatively smoothly just no grunt.

Quote:

Originally Posted by lucasier

Engine sounds fine. In neutral if you give it a rev. RPM rises much slower than usual when you floor it. Just lacking power? Got me beat

Although it revves slower, does it eventually get all the way up to redline if you stay on it?

yes it does redline. Could it be something I missed in the reassembly of the alternator stage. My mechanic removed the radiator and obviously belts etc in the removal. I questioned him on the belt. Is there any way it could be installed the wrong way? resulting in load on the engine? Pretty sure everything was reconnected and would expect a fault on the dash or scanner to show something up. I asked if the pipe from the intercooler could pop off that goes into the throttle body (lower hose). He said no you would hear a load roar from the turbo????????

Quote:

Originally Posted by lucasier

Sorry my bad. Due to the alt stuffed I only got 20mins out of a new battery. Alternator is charging fine now and battery ok. Not needing electricity is def not true. No alternator on a new 750CC heavy duty battery = disaster in 20mins.

Some thoughts: A dead battery can F* up a voltage regulator pretty easily, hopefully the new battery was charged up before install. I've seen them charging fine when idling but not when revs were applied. I'd check this out. Definitely check all the clamps downwind of the turbo to make sure everything is snug (you'll definitely know when one pops off --usually happens under boost)

Thanks but done all that. charging system ok.

Okay 1 problem solved. Damn sirclip popped off the pipe from the intercooler under boost and hose went AWOL. I couldnt see because of the plastic covers underneath. But as always just when u think u solved a problem another one pokes it ugly head.

As mentioned before I had a total reset done and short test drive only 1 trouble code remained (code 31 Electronic Brake Force Distribution). The tech said its not an issue until it shows up on the dash. He said it could possibly be a nitrogen sphere causing it. After fixing the boost problem problem I drove the car about 20 mins and on the way home the Dynamic Stability Control Inactive light came on the dash. Any takers as to why. Could this be linked to the logged trouble code? Any Ideas would be muchly appreciated. TIA

Also not sure if this is worth mentioning or if it is a characteristic of the transmission but it shifts down rather roughly from 2nd to 1st gear. Is this normal or would a software update fix this or is it relative to the above problems???????? If it werent so damn pretty I would whack it one.

Quote:

Originally Posted by lucasier

It might be your steering angle sensor or one of the wheel sensors. Do a search. Here's one to start:

http://www.xoutpost.com/x5-e53-forum/...ht-yellow.html

Good Luck! :thumbup:

EDIT: I doubt its these but can't hurt to try these simple things. You didn't accidentally hit the DSC button did you? The other is when you lose power usually you'll have the 4x4 light on and the steering angle sensor needs to "relearn" posotioning by turning your steering lock-to-lock.

Ill throw it on the scan tool today and see what pops up. Thanks for the tips.

Problem solved. The circlip popped off the pipe from the intercooler. I couldnt hear or see it due to the plastic guard underneath. Noticed a bit of an oil drip so put it up on the hoist, removed the guard and noticed the hose dangling there. So reconnected and power now restored. Phew!