+- CarTechnoloGY (https://cartechnology.co.uk)
+-- Forum: Discussions All about Software and Hardware (https://cartechnology.co.uk/forumdisplay.php?fid=310)
+--- Forum: Automotive Help & Discussions / Software and Hardware (https://cartechnology.co.uk/forumdisplay.php?fid=40)
+---- Forum: VAG Group (VW - Audi - Seat - Skoda - Bentley) (https://cartechnology.co.uk/forumdisplay.php?fid=55)
+---- Thread: Vw phaeton wierd problem. (/showthread.php?tid=84712)
Vw phaeton wierd problem. - Ajdin1 - 24-10-2023
Hi friends, got last week one Paheton towed in, 2005 3.0 tdi
Car died while driving, no start condition after stop.
So did the basic check, fuses, relays, batterys charged etc.
What I Know so faar.
Fuel si beeing sent by the fuel pump, the high pressure pump build pressure without any problems, (Diesel it is, so correct fuel is in the tank)
Engine turns over, no fault codes stored in Ecu, nor in 05 access and auth.
Crank sensor reads, Cam sensor reads all correcty.
Injectors can be heard ticking when pressure is achieved.
So for testing even furhter, i lose one fuel line, connect it on another injector (out of the engine, since i have those injectors in my garage)
Connected fuel line, connector and started cranking. Well to my suprires, the injector is indeed beeing actuated, so it sprays fuel....
Somebody have an idea?
Swaping now injectors, but dont think it will be the issue, since the pressure is achieved, if one was leaking that bad pressure drop would be huge...
Ps The engine runs on spray,funny...
RE: Vw phaeton wierd problem. - audi666 - 24-10-2023
Maybe low fuel pressure. Check fuel pressure according to ELSA.
3.0TDI BMK is well known for bad sensors on the injector ramps, check them.
If it runs on spray is 100% fuel related problem.
RE: Vw phaeton wierd problem. - Ajdin1 - 24-10-2023
Like I said, fuel is coming to hpfp, and hpfp is making pressure, sensor reads, lets injectors kick in, and injectors start ticking, and also with that one injector outside engine, I see that it starts to spray (Atomize, not driping)..
Funny fact tho, while both batteries are disconnected, the fan in the car still runs...