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Discussion Starter #1
Hi all.
So I've just rebuilt the engine following fitting of valve seals
Just started it with baited breath and amazingly all is well .running sweet as a nut and no nasty stinking smoke out the rear. Hurrah . Could be a result ?!!!
Though I have not driven it yet. It's just idled in the garage.
However, my obd2 scanner detects this code. P0012

"A" Cam shaft position over retarded bank one.

Anyone have any ideas on it ???
 

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Exactly what it says fella. (y)
You need to go back in and re time the engine up as one of the cams is out slightly. Usually happens when your tightening the pulleys up.... one moves just slightly.
 

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Most relate to fueling or more specifically your oxygen sensors, sampling errors etc. This along with the map sensor fault code make sense IF the cam timing is out (P0015) Although there is a code there for oxygen sensor 2 heater circuit..... tbh they're shit at the best of times 🤣 My R53 S keeps popping up system lean from sensor 2 every now and again, I'll address it after it's had it's new exhaust on. 🤷‍♂️
The B code is a bit of a mis leader though..... it's a body code but suggestions are it should be P0420 iirc (catalyst efficiency) again address the possible timing error and chances are it'll go away. (y)
 

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Discussion Starter #8 (Edited)
I have had several times , just the cam timing retarded or advanced too much 'code' following the rebuild. I used the locking tools so how can I adjust it ? It wasn't like it prior to the rebuild so i've obviously fluffed something as I had no codes at all , not sure how I can do this. Thoughts... I guess the tiniest degreee off and it'll complain.
And if I've to make a minor adjustment would you replace the bolts in the vanos? They appear to need enormous torque tightning...
 

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I'd be tempted to say yes to renewing the bolts tbh as most these days are single use anyway.
And as to the timing..... yes your right, I can remember another tech at my old garage replacing the cylinder head gasket on a 308 and you have to use an inclinometer to set the Inlet camshaft timing up correctly. He got it out by 2* but every now and again it would put the light on (say after 2-3 days)
Another thing you could try ( I'm basing this on VAG experience) although there are a few you can reset, is find someone with proper diagnostic equipment, autel, autologic, launch etc and carry out an adaption reset on the DME.
This will then clear all of the DME's learned parameters while it's been running with a stretched chain and during subsequent driving cycles it will relearn itself.
I'd advise against pulling the earth lead off the battery as 1) it may not completely erase all learned parameters 2) you could 'spike' any control unit when refitting the earth lead 3) As learnt from previous experience( on an R56) you could cause more problems than solving.
 

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iirc the adaption reset of the vanos is independent of the dme general adaption reset so would have to be done through diag anyway rather than terminal disconnect, same with valvetronic I think....
 
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Discussion Starter #11 (Edited)
Wooooha Nelly you've lost me there lol

Diag ?terminal ?

So my little bt dongle won't help me with torque app??

And then, whats a diagnostic tool that will do it all then for a reasonable cost?
I've always wanted one but there are too many .is there an inexpensive one that does all for the home person!!??
 

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Wooooha Nelly you've lost me there lol

Diag ?terminal ?

So my little bt dongle won't help me with torque app??

And then, whats a diagnostic tool that will do it all then for a reasonable cost?
I've always wanted one but there are too many .is there an inexpensive one that does all for the home person!!??
Diag = Diagnostic(s) Terminal = Battery terminal (y)

There in lays the problem...... Autel is probably the cheapest at circa £800-£900 iirc, then Launch, they're probably only a few hundred more but it's surprising with both platforms what they'll actually do. Autologic is the big boy £many thousands, again from memory, and all have yearly subscricption fees to keep them current. I know of 2 garages that have autologic and they are highly recommended and say aftersales and tech support is second to non. (y)(y)

But these are not, generally speaking, for your home enthusiast who in general just wants a cheap as chips fix and in the main is quite happy with their £20 ebay special that is quite limited.

And in answer to the final part of your question, no, not really. Even the specialists you will find have a go to one that would have cost £2000-£3000 but they will also have others that are more specialised.
Again from a VAG standpoint, as an independent, VCDS would be the everyday machine, where if there were something more complex or required dealer coding you would generally need ODIS.
 

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iirc the adaption reset of the vanos is independent of the dme general adaption reset so would have to be done through diag anyway rather than terminal disconnect, same with valvetronic I think....

Tbh Sean it wouldn't surprise me, you wouldn't want to go driving round re learning parameters after a simple battery disconnect.
It is surprising how much they do learn though in such a short period. The afore mentioned R56 that had a battery change at my old place of work is a point in case.
It'd been layed up for circa 6 months, battery left to drain of its own free will, so it killed the battery. Our MOT tester bought it in for test so the owner could get it back on the road, so with the aid of a booster pack (switched one) he got it running, bought it to work and MOT'ed it then parked it up inside the workshop. (drove fine and passed MOT)
We then swapped out the battery and this is when all the fun and games started, the DME now thought there was a valvetronic fault so put it into limp home on every start. 🤦‍♂️
I know the motor was checked, the valvetronic shaft and the potentiometer on the side of the head, as I believe the DME determines the initial stops by measuring the current to the motor so any undue roughness will trip a stop, even wiring back to the ecu. 🤷‍♂️
Unfortunately I never did find out what was wrong in that instance as I left for pastures new, shame as it strikes me to be one of those little gems of knowledge that rarely gets used but is invaluable when it is.
Certainly made me cautious about 'just' disconnecting the battery. :LOL:
 

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Discussion Starter #14
So are you saying I have to take it somewhere and have the adaptations reset because I've stripped it all down ? And I'll never be able to do it myself? And I also need an inclinometer to set the cam shafts?
 

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Kinda in a nutshell...... yeh. But as previously stated I'd go back in there first and recheck all your timing is 100% correct. And, this my be a moot point, if you think you've gone past the crank peg hole in the flywheel keep going clockwise, never anticlockwise as this will also upset the timing. I believe that's why they give you a Nm torque setting to screw the dummy tensioner in.
 

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There are various versions of INPA and NCS-Expert out there which can do diagnostics and adaptation resets. Some work fine out of the box for the Mini some need some adjusting with the main menu initially to get the right options to show.

Cost of the cable can vary between £10-£30, software is free but usually requires some time to get familiar with and set up properly before using.
 

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Don't pay for the software, it can be obtained for free the links below are those I used (but use and download is of course at your risk).

You just need a suitable INPA cable, I bought mine years ago so can't find the link to it.
Do a search on google for INPA on the BMW forums and sort it by most recent so you don't get things from years ago.
Plenty of information out there.
Youtube also has lots of videos so worth a look there too.

Software and Install guide:

MediaFire

Daten Files (Would pick and choose the ones you want rather than downloading all due to a cap on the volume of data that can be downloaded in a set period by the hosting site) :

15.38 GB folder on MEGA
 

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Discussion Starter #20
Well, Ive gone for this one for no particular reason. 153722965008
Assuming it comes with no software - I need to find what ever does the r56 then,,,,,
 
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