Help me please

[overcrash94]

Hi evereybody, i have a problem with the dme.
I have a m5 f10 from 2013 and my is problem is drivetrain malfunction. When i pass ista, the fault code is 120908, 120408 164042 and 130e20 but my rpm car is really good, the cold start too but i need some power. The vanos is good and i saw that can be the dme memory , so i'm looking for anyone can help me to code the dme. Please. I saw that could be an upgrade too but the version that i have is 2018 but the car was reprogrammed by à tuner before.
Thank you

[M6Roar]

Does your car make any boost?

[overcrash94]

No boost, nothing. I have the limp mode

[M6Roar]

get into ISTA and actuate your boost control after resting the codes see if they do actuate. all 4 codes are active? or some are history?

It would be easier if you can show me a screenshot of ISTA. Also check camshaft sensors, if bank 1 and bank 2 are reading almost identical before we jump to conclusions.

[overcrash94]

Sorry cause it's in french but this is the fault code that i have

[overcrash94]

Now you can see the sensor camshaft values. For the pressure, ista don't see any problem and tel me that i have to repair the fault code 164042 before i make some test. An idea ?

[M6Roar]

Have you done any mechanical work to your engine before this code showed up?

At the moment I see two options to diagnose. Either you reset increment wheel, relearn valvatronic and VANOS and check if it fixes the issue or you switch the sensors from bank one to bank two and vice versa, check if the code move to the other bank.

Also, an almost dead battery will throw all kind of codes.

[overcrash94]

Thank you for your time M6Roar, i'm only changed every vanos solenoid, and both intake sensor cause the fault code before was 130104, i did the adaptation and i have this fault code now.
My battery's not new, Maybe i'm gonna change it. exchange the sensor ( they are news ) so i don't think that's will change. When i'm with ista, i can see that my battery is 12,2 volt that's not enough? Or before to replace her maybe can i recharge her?

[M6Roar]

In that case, go with the first option where you reset increment wheel, learn the valvetronic limit position and relearn VANOS. its suppose to get adapted by itself but no harm in trying(for the first 2 car needs to be off, so delete all codes, reset increment wheel adaptation, relearn valvatronic) start the car (RPM might be jumpy little bit but that's normal) and relearn the vanos and will see how it goes.

In regards to battery I have seen crazy codes showing up even while the car is running, not sure if charging would help but try it before spending cash on nothing.

[overcrash94]

Actually, i'm charging the battery. I'm gonna try what you said and i let you know if it's good or not.

[overcrash94]

I leaved the battery charged all the night but nothing, i'm gonna take à new one.

[overcrash94]

I did everything, the battery, wheel incrementation ( reset) , this is the same, i'm tired White this car but one question, when i want to do the vanos adaptation, i can't cause i need 13v but i have only 12,6v, how can i do it? An other question, when i wanna do thé adaptation valve , i can't and ista say that thé current value is 2000% . It's normal?

[M6Roar]

Originally Posted by overcrash94

I did everything, the battery, wheel incrementation ( reset) , this is the same, i'm tired White this car but one question, when i want to do the vanos adaptation, i can't cause i need 13v but i have only 12,6v, how can i do it? An other question, when i wanna do thé adaptation valve , i can't and ista say that thé current value is 2000% . It's normal?

This isn't the test I was talking about, search for "VANOS Solenoid Valve, inlet" and then I think it will give you two options bank one and bank two after that choose I believe its test function.

[overcrash94]

Sorry, i have so much work but i really need your help. Thank you again for your time. Now, with the Kids, it's difficult for me but tomorrow, i will be alone. This is the picture for the adaptation of valves.

[M6Roar]

Not the one I am talking about, for the one you are showing you will either need ICOM to let ISTA read the voltage correctly or some software to fake voltage. disclaimer: I have never done that so do it at your own risk.

The one I am talking about is this(this is fine to do):

[M6Roar]

When you replaced the VANOS on the passenger side, did you reconnect the vacuum hoses in their correct location(two hoses on each boost solenoid)? VAC: from the pump, Out: to the turbo? Double check that

[overcrash94]

So i tried to reset solenoid vanos but i can only for exhaust side, for inlet side, i can't cause ista say the timing chain is not good.

[overcrash94]

When i did the Solenoïde, i did'nt touch the hose pressure, you can see when i took the picture when i was working on the car

[M6Roar]

Then it might be mechanical, maybe someone could chime in. Or you should take it to a mechanic.

[overcrash94]

I tried again and inlet 2 was at 0.6 but inlet 1 did'nt move. I'm gonna check the Solenoïde or maybe the vanos is blocked.

[M6Roar]

tbh I still think your issue is electrical more than mechanical. Put back your old cam shaft position sensor and recheck the readings or if you got the same previous code I understand they are new but they might be faulty new that applies to VANOS too. recheck all you wirings. (Mainly Bank 2) switch them from bank 2 to bank one and see if the code moves the reason I asked you to flip them before to check if the code moves along.

The reason you are not getting boost isn't the boost solenoids, the car has mechanical vacuum pump at the end of the passenger side connected to the intake camshaft. Since ista says you have issue in the intake camshaft it won't turn enough to generate boost. To test it get a vacuum gauge and see if the pump itself generates enough vacuum

[M6Roar]

On a bright note since all VANOS and position sensors are the same you can exchange the inlet one with the exhaust ones on the same bank if you don't feel like removing both charge coolers to do it and see if the code move to the exhaust camshaft. Yet the first method has higher accuracy.