Svensamios

Right guys, I sent all 6 injectors off to be tested, low and behold, injector 3 has zero flow on idle. Got it rebuild, fitted it this evening, and I've got a smooth idle! Took it for a drive, no fault codes and no lights. Low rail pressure seems to have disappeared now too. Just want to say a massive thank you to everyone that gave advise. I can finally get back to work now 😂! Cheers once again!

I think I might whip the injectors out over the weekend and get them tested, and see what the diesel specialist reckons.

I also got a video of the injection variation, but I'll be honest I don't really know what it means. Have attached a couple of screenshots as it won't let upload the video

I've got a snap off solus unit and I've got a knock off Delphi unit, haven't tried the Delphi. As far as codes go, I've got: 4698-U1113 - function restriction due to received malfunction value - open or shot to plus 4699-U1113 - function restriction due to received malfunction value - open circuit 7150-P1698 - please check DTC memory of steering wheel electronics But I have a feeling they're related to a clock spring issue. Clock spring went a few months ago, replaced with a complete second hand unit, and the light I had for the airbag went out but got an ESP light and the steering angle sensor won't calibrate.

That's what I thought. But I'm getting to the point where it's got an entirely new fuel system. I can't see it being the pressure sensor as the reading I get on live data, seem to be correct, and I can't see it being the relay, from my understanding they either work or they don't, but could be wrong.

Leak of test results. 3min test on idle. Cyl 1 - 40ml Cyl 2 - 60ml Cyl 3 - 30ml Cyl 4 - 50ml Cyl 5 - 40ml Cyl 6 - 40ml

Do you mean the copper seals? If so they were all replaced when it was stripped down for the hpfp So wouldn't have thought it would be them, but I was thinking that it could be the injectors but all 6 seem to give a low amount of return, and from what little I know, if the injectors are bad they tend to flood out? I have the results written down, I'll find them and post them here.

Meant to say it's an A6 C7 3.0tdi CDUC Quattro Avant 2012

Hiya guys, I'm really hoping someone can help with this issue. Started off as a p0087 low rail pressure and limp mode under load. Then developed a slight rough idle in park and neutral, and erratic in drive and reverse. Changed fuel filter and FPR valve, no difference. Then developed into really erratic idle in drive gears and kept trying to stall when coming to a complete stop. Until finally it did stall. Wouldn't restart. After checking fuel rail pressure whilst cranking (200psi after 10 secs) I figured it was the hpfp. Have changed that, got the car started, ran around for a day. Then stalled coming up to a junction, with no restart. Now thinking lpfp, replaced that now have it started again, but still have the idle issue, and a bit too scared to drive it to see if it dies when coming to a stop. Note: have also replaced the fuel pump controller that sits on the fuel tank. Did a leak off test and getting around 30-60 ml per injector after 3-4 minutes which seems low to me? Any ideas