E60 V8 Engine management fault - FIXED!

Well this is no time to guess , I think only a diagnos could give help to find it out. It s to much differnet faultys who could give this problem.

 

I get the yellowlight on my 540 fore 2 weeks ago. Camshaftsensor have indicated 78 times, and becuse it regulates the injektiontiming I get a out of limitregulation on additive adapationvalues on the same bank. I have not notice anything wrong at all. I reset the codes and order e new sensor.

I reset the codes when the engine was running and it shake 2 or 3times and the engine runs smoother then before, when the yellow light is on the engine runs on locked addativevalues

I take out the car fore a hard drive and no codes comes back

When I drive 45 kilometer to BMW in normal speed and rpm to get the sensor, I get new camshaftsfaulty code 3 times on the same rpmlimit as before but dont notice anything wrong at all.

Change the sensor OK after a long weekend trip 900 km.

http://www.autopower.se/galleriet/bloggbilder/00016020_s100. jpg

http://www.autopower.se/galleriet/bloggbilder/00016021_s100. jpg

 

Edited by Hasso

Now at home, light stayed on when started to drive home.  Most faults with my E39 when they first appeared would appear, go away, come back, go away then come back and eventually stay until fixed but this one is obviously persistant.

Handbook says that "exhaust emissions values have deteriorated" so I'm guessing it is a faulty sensor.  I'm not over fuelling as I'm getting good fuel consumption considering the heat, use of air con and towing or all three at once.

If I rev the engine while stationary, the revs drop but only to 1000 rpm and then very slowly drop to 750 rpm and not the 500 rpm usual idle. 

Certainly made he haw difference driving home performance wise, she pulled cleanly and smoothly (and still chuffin' quickly!) to 6,500 rpm but by that time I had exceeded the speed limit in 2nd gear and had to back of a bit, ahem, cough.  

Andrew

Well shore its not a bird under the plasticcover :)

It could be a drivebelttensiorwheel, waterpump, servopump or something like that. Some intake airleak have a noise like this on M54 if a pipe gets cracks connected to the airfilterbox.

I be shore you notice if you drive on 7 cylinders think your enginge runs fine at all 8 what is possible to hear on the wideos.

And if a coil or plug is defect, the DME close down the petrol to that cylinder just becuse to save the cats,  I think the Mechanic dont know how the DME and fuel system works in a BMW. :)

You should get BMW/Inpa ediabas and an old laptop so you can do your own diagnos it works in BMW cars up to 2004/2005.

Garage phoned to say that they have fixed the fault.  They could not see a specific fault in the ECU and cleared the ECU, light went out and took car for drive and to quote the mechanic "that's some scary car". 

Light had not re-appeared.  Mechanic and specialist put it down to just a glitch in the ECU software and that I should just watch and see what happens. 

Will collect the car later and see what's what.

Andrew

Hmm

Drove to work this morning.  Car would rev to red line when driving so I guess it's a stationary rev limit thing at 5,000 rpm so that's that worry over.

Engine management light went out and remained out after each time starting so that's that worry over.

Just before I was parking I could hear the noise again that you can hear in the above videos. D'oh!

Parked the car and it was idling like a tractor again.  Rev engine and it's fine and sometime on the revs settling the idle is o.k. other times.

No warning lights on dash.

Anyone got any suggestions?

Coils? Spark plugs?

Andrew

 

jetsetwilly2000 wrote: Bloody modren cars, could be anything!  But it sounds mechanical to me, so not a plug or coil (at least not directly).  Could be some clever valvey thing that I wouldn't know about, but sounds like a belt tensioner or some other rotating thing packing up.  If it was an old viva I'd say water pump!...

Aye I agree with you, but would that be related to the uneven idle?

 

Light came back on last night.

Back to garage.

Fault codes obtained 32 3 27 2D and 32 3 27 2C.  Means nothing to the diagnostic machine the garage is using.

Don't suppose anyone knows the fault codes do they?

Car is booked into Harry Fairbairn (Glasgow) to look at it on Tuesday.  Got a works van for Friday to Monday.

Thanks

Andrew

The trouble with modern cars is that they are so damn complicated that fixing a problem like this requires all the proper diagnostic equipment plus a healthy dose of experience.

I wouldn't even know where to start with an E60. One for a good speciallist IMO.

Stone-IslandV8 wrote: Probably not it at all but sounds remarkably similar to the noise I got with the knackered PCV.

A faulty PCV would cause the engine to produce exhaust gasses which are not the norm, hence put the light on in the first place.  You might be on to something Sir.

To me it sounds like an air noise rather than a rotating part.  The source of the noise is also difficult to pin point.  It might be from the back of the engine, where I think the PCV or equivalent E60 bit is located or it sounds like it is coming from the front by the belts.

Andrew

When I was getting the noise on mine it sounded at first like it was coming from the front of the engine but with closer inspection it was def coming from the back. PCV on the E39 V8 is buried at the back by the bulkhead...tricky bit is getting the torx bolt in to undo the screws.

Mine didnt do it all the time and performance certainly didnt seem affected. Might be a red herring but worth thinking about.