No Fuel or Pressure from HPFP - Club Touareg Forums
 
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post #1 of 4 Old 08-05-2017 Thread Starter
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No Fuel or Pressure from HPFP

BKS engine.

Installed new swirl flaps in the lower inlet manifolds. To do this I had to remove two high pressure fuel pipes connecting the HPFP to the left fuel accumulator and the high pressure fuel connecting the left hand accumulator to the right hand accumulator and the plastic fuel delivery line to the HPFP.

I have bleed the system IAW eWin 1.11 Bleeding the Fuel System.

Treg refuses to start. I have fuel flowing from the low pressure pump at the inlet to the HPFP and also from the return from the HPFP.

Nothing from the high pressure side. No faults are showing in relation to the fuel system. (I only have an ObEleven app which will show and clear faults and test outputs.)

What have I missed and any ideas?

MY08 V6 TDI, Shadow Blue, Beige Interior, Towbar, Air Suspension, LED Load Box (not used).
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post #2 of 4 Old 08-05-2017
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Crack the injector line nut on the fuel rail. Right hand side closest to firewall and let any accumulated air out. One the engine cranks with clear fuel only, re-tighten and start.

2008 V6 TDI, with the following Retrofitted Items:
ACC, Front & Side Assist, Paddle Shift, Towbar & Trailer Module, Fiscon Bluetooth. Reversing Camera, Front Fog Lamps, Redarc TowPro Brake Controller, T1 Door Warning Lamps, T1 Under Seat Drawer, Alloy Skid Plate, 5ton Winch, Cayenne Front and Rear Sway Bars, Tuned by Oettinger, Retrofitted 6 Piston Brembo Front Brake Callipers, Sports Steering Wheel, TPMS (OEM), Dual Batteries
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JimJ (08-06-2017)
post #3 of 4 Old 08-06-2017 Thread Starter
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Fixed

Removed HPFP belt, cracked #1 and #6 injector lines at common rails, ran the low pressure fuel pump through diagnostics and rotated HPFP by hand until all air was expelled and clean fuel flowed from injector lines.

Tighten all connections and the Treg started after about 5 sec of cranking.

See demo here

MY08 V6 TDI, Shadow Blue, Beige Interior, Towbar, Air Suspension, LED Load Box (not used).
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post #4 of 4 Old 08-06-2017 Thread Starter
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Touareg: 2008 V6 TDI
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Location: Sheldon, Australia
Second Vehicle: is not a VW
Posts: 406
Thanks: 6
Thanked 20 Times in 19 Posts
Quote:
Crack the injector line nut on the fuel rail. Right hand side closest to firewall and let any accumulated air out. One the engine cranks with clear fuel only, re-tighten and start.
Stuart
Thanks for the tip. I was a little concerned about continue to use the starter to crank the engine.
seafarer28 (thanks Tony) gave me a tip about removing the belt and doing it by hand. Was a little apprehensive about this until I found the Russian video.

Looks like we may have to learn Russian as a pre-requisite to owning a Treg.

MY08 V6 TDI, Shadow Blue, Beige Interior, Towbar, Air Suspension, LED Load Box (not used).
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