jetta stalling randomly.

[amem00]

Hi
My jetta 2006 TDI, is stalling randomly since several month.
It was stalling on outroad ways or on a left curve...
I changed the DMF and G28 (error P0321) because of knocking sound when the engine at idle. When press the clutch the sound desapears.---> error gone but still stalling.

I also changed G40. --> error gone but still stalling

Changed the timing belt. --> OK but still stalling

Changed the 4 glow plug --> error gone on glowplug cylinder 3 but still stalling

Changed the throttle flat --> error P2015 gone but still stalling.

Now it stalls without known pre-sign.
Did i missed something ?
Could it be the diesel pump ? Working fine moments and missing others ?
My brakes also need to be replaced but the brake signal on dash stopped to turn on after several alerts. Is it normal ?

[chittychittybangbang]

It's possible it's a fuel problem but it doesn't explain the knocking sound.

Any fuel leaks? Good fuel filter? It's possible it's a bad tandem pump. On the driver's side end of the head there's a dual fuel and vacuum pump. Normal fuel economy? No other error codes? There's an electric fuel pump in the fuel tank. It's possible it's cutting out or clogged resulting in no fuel.

The other injection pumps are the injectors themselves. If there's a wiring problem to the head (look at driver's side round plug), it's possible it could result in fuel cut.

Good engine compression? I'm not sure if the knocking sound at idle is a bad camshaft but have you inspected the cam? http://www.myturbodiesel.com/1000q/m...ace-VW-TDI.htm I don't think this would be silenced by stepping on the clutch though.

[Stefan2006]

Does it stall at all engine rpm or just at idle?

[amem00]

The knocking sound disapeared after changing DMF.
Quality of fuel is bad that's a fact.
For now there is no error code except the P0321 concerning the G28 sensor.
It doesn't light the check engine.
I didnt check the camshaft, my mecanician told me it's not a wear problem, the engine sound is good.
I noticed a black smoke when I press throttle due to bad fuel quality.

I forgot to notice that frequently the tach fall to 0, the glowplug and oil lights flash, air conditionning and ASR go off.

[amem00]

do you have exact part number for G28 engine speed sensor for a BRM engine ?
Thanks

[chittychittybangbang]

Sure, it's built into the rear main seal. FYI, here is the procedure to replace it if needed.

The part number is 038 103 171 s (038103171s)

http://www.myturbodiesel.com/1000q/a...a-Golf-mk5.htm

[Fluid]

Have you checked the wiring harness to the injectors? Maybe turning left is letting some wires touch and cut fuel.