sgt1297

I’ve never checked fuses or relays. The warning light would come on and that was the only indication of a problem. No limp mode and it would reset after cycling the ignition. When dismantling the fuel rail and lines, I never had any metal particles. The real issue is the metal particles. As stated by sepulchrave, the pump is the prime suspect for not starting. A fuel pressure test would confirm it

Metal particles are not great. If it were me I would try anything. There is a real possibility that there will be metal particles in all the bits and pieces. Nothing to loose I would say.

No longer have the car and it was never resolved. Car always started and only ever generated the fault when trying to accelerate from too low revs. Didn’t go into limp mode and the light reset when ignition turned off and back on. Not fuel pump or sensor. Local VAG specialist garage diagnosed a sensor, but only because they couldn’t find a fault when diagnosing. A mystery. Sorry I can’t be of more help. Good luck.

Lockdown has prevented me getting hold of the car to check this out. Will be checking the alternator output as soon as I can and will report back.

Hargur, I haven’t found a solution, or at least I haven’t found a component that has been found to be faulty. Use of the gear box to keep the revs above 1500 rpm and not trying to accelerate too hard from low revs has meant the light doesn’t come on. Have you established what the fault code is that brings on the light?You

This is my son's car and when I drive it the problem doesn't come up. As soon as he would drive it, the fault would show up before he had travelled a few hundred yards. He was changing gear far too early and accelerating far too hard at low revs which would bring on the fault. Fault doesn't show up any more. thomasaspin, how did you diagnose the alternator was the problem? What voltage were you getting?

Had to a local VAG specialist for some diagnostics and declared the injectors were all good and could not explain the issue.

Thank you. I will explore that with Skoda.

Update on what I have done so far: Removed the N290 Metering Valve - clean as a whistle. No debris Replaced the in line pressure regulator/filter under the rear offside. Checked all connections I can investigate. When I drive the car I do not get the fault. When my son drove the car after the last service he phoned me to say the light was back on! He hadn't even gone a mile. Driving style would appear to influence the occurrences. It would appear that the car doesn't like being accelerated from low revs. It is an underpowered car designed for economy. If you try and accelerate hard from 1500 rpm the light comes on and the low rail pressure fault is recorded. My advice to him was to keep the revs a little higher and use the gearbox more when wanting to accelerate. Fault light hardly ever comes on, and when it does it is when combines low revs and high gear to accelerate. Living with it for now. Anyone else experienced a similar phenomenon?

2012 1.2tdi Greenline Fabia II. Keeps throwing up the fault code P008700. Coil/glow plug light flashes for the remainder of the journey but resets when you come to start the car again. Does not go into limp mode and is intermittent. Changed fuel filter, in tank lift pump, fuel rail, fuel rail pressure sensor and fuel rail pressure regulator, but still appears periodically. Any suggestions as to the cause or other courses of action to try and eliminate this issue. Thanks