850tdi Fuel Pump Issue - Page 2

dingov70 · Aug 13th, 2016, 07:48

If i remember correctly , i have seen this code cured by releasing the multiplug on the pump from the main wiring loom & spraying the pins / socket with wd40 and refitting . Release & refit the plug many times & it removes/ reduces any corrossion that leads to an incorrect signal to the ecu and the bloody warning light coming on & going off whenever it feels like it

martin_r_smith · Aug 13th, 2016, 08:37

I had a quick go at getting his plug undone but jeez that bugger was the tightest one I've seen yet! But you're right it's definitely worth a go.

Purdydog · Aug 13th, 2016, 12:22

Cheers Martin thanks for your help and advice. Its much appreciated.

You were right about the starter, I just didn't get round to sorting it. AA crappy reckoned not many people check voltage drop and replace batteries staters and alternatos to no avail so it was fortunate he came along when he did.
I got to talk to him over the phone and relayed the info you gave me which put him on track to finding the fault.

Glad I didn't have to replace the starter as it's in a sod of a location!!

Thanks again

Barry

Aug 13th, 2016, 07:48	#11
dingov70 Master Member Last Online: Today 06:11 Join Date: Jan 2015 Location: Blackpool	If i remember correctly , i have seen this code cured by releasing the multiplug on the pump from the main wiring loom & spraying the pins / socket with wd40 and refitting . Release & refit the plug many times & it removes/ reduces any corrossion that leads to an incorrect signal to the ecu and the bloody warning light coming on & going off whenever it feels like it __________________ To stupidity & beyond

Aug 13th, 2016, 08:37	#12
martin_r_smith Premier Member Last Online: May 10th, 2022 21:01 Join Date: May 2009 Location: Wiltshire	I had a quick go at getting his plug undone but jeez that bugger was the tightest one I've seen yet! But you're right it's definitely worth a go. __________________ 1983 244

Aug 13th, 2016, 12:22	#13
Purdydog Yorkshire Exile Last Online: Nov 5th, 2019 13:18 Join Date: Nov 2010 Location: Exeter, Devon	Cheers Martin thanks for your help and advice. Its much appreciated. You were right about the starter, I just didn't get round to sorting it. AA crappy reckoned not many people check voltage drop and replace batteries staters and alternatos to no avail so it was fortunate he came along when he did. I got to talk to him over the phone and relayed the info you gave me which put him on track to finding the fault. Glad I didn't have to replace the starter as it's in a sod of a location!! Thanks again Barry __________________ 1999 Volvo V70 SE 2.4 non turbo Petrol - manual gearbox... 208k miles & counting....Deceased - the dreaded ETM.... 1996 850 tdi glt 132k Last edited by Purdydog; Aug 13th, 2016 at 12:28.

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