hi everyone, buckle up as quite a long one!
Van is a 2004 tddi 75bhp with postal remap carried out some years ago. have 3 full working keys and 1 without chip.(working keys all work when van is starting)
intermittant starting, Plenty of battery good starter motor turns over freely when not starting and fuel comeing out of each injector when turning over not high pressure but plenty i think?
The beginning...... stopped the van hot then would not start, refused to start for a day or 2, (initially thought immobilser issues) disconnected ecu,clocks,ignition ring,pump and battery, went through all fuses and relays checking for blown and gave relays a gentle tap. rebuilt and the thing started about half a dozen times off the belt then failed???
did the immobilser thing again the next day, the van started every hour on the hour without fail......... jackpot fixed bad connection!!! WRONG
following week the van would start and drive to my destination then usualy fail to start imediatly after stopping, retry an hour or so later it would start. did this for approx 1 week but now a total failure.
paid for a quick diagnostics whilst it was running and guy told me pump timing fault "its the pump" however he was doing quite a few things at same time and im looking for other peoples views as a recon pump is £500 before fitting.
i read a thermistor is a common problem on the vp44 psg5 pump fitted to my van(however these nomally fail whilst running)
someone on ebay offers testing of pump ecu and repair at extra costs.
im looking for opinions especially if you have had a similar problem, done research but most have had different issues to me typically!
Thanks for reading till the end, the vans way too good to scrap over this. all help appreciated rob.