Vince12v 20 Posted September 29, 2013 Report Share Posted September 29, 2013 Hi guys I had my mk3 plugged in to the vagcom last night and we found error code 00668 - low voltageI've done abit of diggin around and various checks and have now come to the conclusion the relays are duds, Ecu relay and fuel pump relay I have found other people to be changing but I'm not 100% clear on part number1j0 906 381 a ecu relay191 906 383 c fuel pump relayBut these are from obd1 corrado, will they be the same in obd2 golf??And am I chasing in the right direction???Sent from my iPhone using Tapatalk - now Free Link to post Share on other sites
Toddy 8 Posted September 30, 2013 Report Share Posted September 30, 2013 If you're running OBD2 then you do not have an ECU relay. The fuel pump relay is the same item across both engine types, I can't recall from the top of my head what number it has on the top. 53 springs to mind or is it 18? Link to post Share on other sites
Big J 283 Posted September 30, 2013 Report Share Posted September 30, 2013 Fuel pump relay has 87 printed on the top, ecu relay IF you have one has 109 printed on it. Guess how I know..... Link to post Share on other sites
Vince12v 20 Posted October 1, 2013 Author Report Share Posted October 1, 2013 I'm guessing fuel pump relay is a common issue??Sent from my iPhone using Tapatalk - now Free Link to post Share on other sites
VR6Pete 1,455 Posted October 2, 2013 Report Share Posted October 2, 2013 I'm guessing fuel pump relay is a common issue??Sent from my iPhone using Tapatalk - now FreeYuppers Club Chairman Link to post Share on other sites
Vince12v 20 Posted October 2, 2013 Author Report Share Posted October 2, 2013 Will be gettin new one ordered today thenSent from my iPhone using Tapatalk - now Free Link to post Share on other sites
Vince12v 20 Posted October 2, 2013 Author Report Share Posted October 2, 2013 33 quid I've been priced, is that right??Sent from my iPhone using Tapatalk - now Free Link to post Share on other sites
Toddy 8 Posted October 2, 2013 Report Share Posted October 2, 2013 33 quid I've been priced, is that Sent from my iPhone using Tapatalk - now Free Yes, try GSF or ECP for one though. Link to post Share on other sites
Vince12v 20 Posted October 2, 2013 Author Report Share Posted October 2, 2013 I was told to stay clear of cheap relaysSent from my iPhone using Tapatalk - now Free Link to post Share on other sites
Big J 283 Posted October 2, 2013 Report Share Posted October 2, 2013 Go to the dealers mate, the original relay lasted this long, I'm guessing in the region of 15 years depending on year of your car, then 33 quid for another 15 years is not bad money at all. (Hoping you don't end up with the one in a million relays that turns out to be a duffer and only lasts 6 months lol) Link to post Share on other sites
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