engine died bkd 140pd 07 solved

[webo]

Hi, my golf died on the highway, i felt some sluggish power, managed to pull aside, engine got less and less responsible, and finally died.
it cranks but no ignition, i tried starter fluid, and it fired.
my first thought was lift pump, i bypassed with 12v directly it runs and deliver fluid, i allready tested the pressure and i got 4 psi. tandem pump, i opened that, it looks fine,
few months back the timing belt jumped some teeth cause of one of the wheels loosened from engine, i rethreaded the engine with new bolt, timed it and it ran perfect up to now.
i don't know where to look for any more cause of the non firing engine. i got no code in vcds.
timing are still good. i tried to unplug the camsensor white and black plug below intake. . new fuel filter also installed.
since it fired with starter fluid, i don't suspect cam followers damage from cambelt failure, but i dont know. workshop told i was lucky because the followers usually broke.
so i need some advice
right now i still haven't mounted back the tandem pump due to lack of gasket on hand. im quite shure if i reassembly back it will still not run.
right now im gonna test the flowrate from lift pump, i do not know if the volume matters a big deal,
thanks.
edit.

new lift pump solved the issue, thanks to the contributors for solving this

 

[Rx7145]

I’d start by re-checking timing. Flow to lift pump. Any codes.

 

[webo]

timing are checked, nothing moved, no codes in vcds, flow test up next edit, flow test measured 1,2L about half of required, could that be the reason although the tandem pump should do the most of the job?

 

[lmccoy_61]

Do you have air? Maybe your EGR finally gummed up your intake. You are European...... You don't have a DPF right?

Also these are diesels, there aren't any spark plugs "firing" for "ignition". Sorry I am compulsive with my terminology.

 

[webo]

Do you have air? Maybe your EGR finally gummed up your intake. You are European...... You don't have a DPF right?

Also these are diesels, there aren't any spark plugs "firing" for "ignition". Sorry I am compulsive with my terminology.

well it started with starterfluid. so it must get air. no it does not have any dpf. and egr was plugged years ago. the intake flap are open and works.
i ordered a new lift pump just to eliminate if the old one does not deliver sufficient pressure. diesel return lines are confirmed open.
i have not checked the turbo yet. i read somewhere that the exhaust wheel can brake and stuck in exhaust. i dont know if this turbo have this design

 

[Seatman]

well it started with starterfluid. so it must get air. no it does not have any dpf. and egr was plugged years ago. the intake flap are open and works.
i ordered a new lift pump just to eliminate if the old one does not deliver sufficient pressure. diesel return lines are confirmed open.
i have not checked the turbo yet. i read somewhere that the exhaust wheel can brake and stuck in exhaust. i dont know if this turbo have this design

Yeh they all do, turbine wheel but in my experience it doesn't block the exhaust and the car starts fine. Just wouldn't drive due to no boost and oil can pour out the exhaust.

To me it sounds more fuel. isn't 4psi a bit low for the lift pump?

Has the car been harder starting at all recently? Lumpy idle when cold etc?

 

[webo]

yes i have had low idle at start recently. needed to keep the key in start position a second longer. it fires imidiately but if i let go of key too soon it would die. 4 psi are low. and i think it should have gained the pressure a bit faster. thats why i ordered new pump. but i honesly didnt think it matters that much as the tandem would do most of the work. so from your questions, this might do the trick then?

 

[Seatman]

yes i have had low idle at start recently. needed to keep the key in start position a second longer. it fires imidiately but if i let go of key too soon it would die. 4 psi are low. and i think it should have gained the pressure a bit faster. thats why i ordered new pump. but i honesly didnt think it matters that much as the tandem would do most of the work. so from your questions, this might do the trick then?

I older tdi it didn't matter so much but in newer cars the lift pump restricts the flow so the tandem can't really suck fuel up properly if the lift pump isn't working.
Happened on my last car, 2007 2L tdi seat alhambra, no lift pump, no run.

 

[webo]

I older tdi it didn't matter so much but in newer cars the lift pump restricts the flow so the tandem can't really suck fuel up properly if the lift pump isn't working.
Happened on my last car, 2007 2L tdi seat alhambra, no lift pump, no run.

Thank you. hope the new pump will do the trick