It won't start, aa came out & tried to get it going, said his diagnostics was unable to communicate with my car, would like to get a non aa opinion
Is the rear fuel pump not the first place to start, i.e. Is it running (can you here it)?
I also quite agree that diagnostics will probably not help, when mine wouldn't start, the RAC said it was the crack shaft sensor, was in fact the rear fuel pump not working.
Thanks .... it's a 2002 td4.
I took the fuel line off the fuel rail and cranked it, fuel came out the pipe.
I will check the fuel pumps, 1 behind rear wheel arch, where's the other 1?
Also, if there's low fuel pressure, wouldn't that come up as a fault code?
The other lift pump is under the bonnet.
Low fuel pressure won't necessarily flag a code.
The high pressure fuel pump regulator O rings is a good and cheap place to start looking.