2002 Volvo V70 D5 se auto, 205k, self owned from new but now in permanent limp mode!

[barriewilliams]

Hi, my 2002 Volvo V70 D5 auto, which I've owned from new, started to play up by occasionally stalling in traffic, but usually restarted, until the problem became more frequent. It went into limp mode a couple of times, which was solved by stopping and restarting. However, it is now in permanent limp mode at 5 mph. The local garage won't tow an automatic car, so I am stuck. I have replaced the air sensor and put on a new battery today. I can go anywhere I want at 5 mph. A local mobile garage company connected their OBD and stated 'a low fuel pressure' reading, which they said could be anything on the fuel line from tank pump, line splits or filter problems, so wouldn't touch it with a bargepole. I love my Volvo, which goes back and fore to the Alps, has full sets of summer and snow tyres and although the Comms GPS doesn't read dvd discs anymore, she is a great friend, but as I'm now retired money is scarce.

Any advice would be appreciated.........

[Harvey]

Have you change the fuel filter ?.
Any difference when the fuel tank is full or near empty.

[barriewilliams]

Thanks Harvey,
I bought a new fuel filter, but have not yet tried to fit it because of advice that it was a mare of a job. I certainly didn't notice any relationship to fuel load and at present it has a full tank left over from when the car last went into limp mode.
I have a friend bringing over his OBD tomorrow morning and I will post the findings later.

[T5Si]

My last v70 d5 had fuel pressure problems. It kept going into limp mode every time I floored it. I replaced 3 out of 5 injectors. Was better but still not cured. Then I replaced the fuel rail with the pressure sensor and regulator attached and that seemed to cure it no problems yet

[jdavis]

Ideally you need someone with VIDA near to you to see what is actually causing it to go into this 'limp mode'

[Garett]

Could be either of the fuel pumps, is it slow to start? If so it may be lift pump in the tank. There is also the high pressure fuel pump on the engine.

You need a good Volvo specialist with VIDA to help diagnose.