VANOS issue? NEED HELP

Danishp97 · 06-18-2023, 02:14 PM

Hi guys, my car is stage 2 tuned with eventuri intakes vrsf catless downpipes and plugs coils injectors all new. Car was driving fine. I had a nice WOT run in it. Post which I was cruising around and i got a drivetrain error. Car started stuttering violently & misfiring too. The check engine light flashed too. I scanned the car at the same time & i got these codes. Post which i shut the car & restarted - still the same. I switched off the car & popped the hood open and could hear a ticking noise from the oil cap with the engine NOT running. Attaching the video & codes too. Car has only 18k miles..

https://youtube.com/shorts/GrQ_Xu68IVg?feature=share

video

Danishp97 · 06-20-2023, 07:55 AM

Anyone here?

M5Rick · 06-20-2023, 08:19 AM

I'm stumped on that, sorry. The ticking could be coming from around the oil cap area below.
I hear that choo choo sound once only when engine is switched off, that being the fuel pump priming itself keeping the fuel pressure up,
could it be going off all the time with yours?

Danishp97 · 06-20-2023, 08:22 AM

Quote:

Originally Posted by M5Rick

I'm stumped on that, sorry. The ticking could be coming from around the oil cap area below.

Yup below there is where the valvetronic motor sits I guess

M5Rick · 06-20-2023, 09:14 AM

Then it looks like that's where the abnormality is, it looks quite dusty where you are and I'd check your air filters and their security too.

JayDD007 · 06-20-2023, 08:33 PM

Seeing as all misfires are on one bank I'd be curious about rail pressure as well. Ive seen plenty of high pressure fuel pump failures but typically with faults. (They do have a 10 yr 120k mile extension) Unfortunately could certainly be a valvetronic issue as well. As VANOS and Valvetronic are two completely independent systems one would not effect the other.

Danishp97 · 06-21-2023, 12:56 AM

Quote:

Originally Posted by JayDD007

Seeing as all misfires are on one bank I'd be curious about rail pressure as well. Ive seen plenty of high pressure fuel pump failures but typically with faults. (They do have a 10 yr 120k mile extension) Unfortunately could certainly be a valvetronic issue as well. As VANOS and Valvetronic are two completely independent systems one would not effect the other.

Thanks for the insight. This looks like a valvetronic fault on bank 1 itself. Since they disconnected it but still the mechanical noise was there

Danishp97 · 07-13-2023, 05:11 AM

UPDATE - Hi guys. I had a valvetronic motor failure. I installed new valvetronic motor, the car starts up & idles fine. But once it warms up, the same issue happens, it misfires & bank 1 shuts. Should i swap dme?

06-18-2023, 02:14 PM	#1
Danishp97 Private 23 Rep 92 Posts Drives: BMW F06 M6 GRAN COUPE Join Date: Aug 2022 Location: India iTrader: (0)	VANOS issue? NEED HELP Hi guys, my car is stage 2 tuned with eventuri intakes vrsf catless downpipes and plugs coils injectors all new. Car was driving fine. I had a nice WOT run in it. Post which I was cruising around and i got a drivetrain error. Car started stuttering violently & misfiring too. The check engine light flashed too. I scanned the car at the same time & i got these codes. Post which i shut the car & restarted - still the same. I switched off the car & popped the hood open and could hear a ticking noise from the oil cap with the engine NOT running. Attaching the video & codes too. Car has only 18k miles.. https://youtube.com/shorts/GrQ_Xu68IVg?feature=share video Attached Images
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06-20-2023, 07:55 AM	#2
Danishp97 Private 23 Rep 92 Posts Drives: BMW F06 M6 GRAN COUPE Join Date: Aug 2022 Location: India iTrader: (0)	Anyone here?
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06-20-2023, 08:19 AM	#3
M5Rick General 60063 Rep 19,542 Posts Drives: M5 F10 DCT Gunmetal Join Date: Aug 2018 Location: Southern England iTrader: (0)	I'm stumped on that, sorry. The ticking could be coming from around the oil cap area below. I hear that choo choo sound once only when engine is switched off, that being the fuel pump priming itself keeping the fuel pressure up, could it be going off all the time with yours?
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06-20-2023, 09:14 AM	#5
M5Rick General 60063 Rep 19,542 Posts Drives: M5 F10 DCT Gunmetal Join Date: Aug 2018 Location: Southern England iTrader: (0)	Then it looks like that's where the abnormality is, it looks quite dusty where you are and I'd check your air filters and their security too.
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06-20-2023, 08:33 PM	#6
JayDD007 Private First Class 105 Rep 146 Posts Drives: BMW's Join Date: Jan 2014 Location: PA iTrader: (3) Garage List 2020 G07 X7 [0.00] 2013 E70 X5 [0.00] 2003 E46 M3 [0.00] 2013 F10 M5 [0.00] 2009 E90 335ix [0.00] 2009 E90 M3 [0.00]	Seeing as all misfires are on one bank I'd be curious about rail pressure as well. Ive seen plenty of high pressure fuel pump failures but typically with faults. (They do have a 10 yr 120k mile extension) Unfortunately could certainly be a valvetronic issue as well. As VANOS and Valvetronic are two completely independent systems one would not effect the other.
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07-13-2023, 05:11 AM	#8
Danishp97 Private 23 Rep 92 Posts Drives: BMW F06 M6 GRAN COUPE Join Date: Aug 2022 Location: India iTrader: (0)	UPDATE - Hi guys. I had a valvetronic motor failure. I installed new valvetronic motor, the car starts up & idles fine. But once it warms up, the same issue happens, it misfires & bank 1 shuts. Should i swap dme?
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