Navlall 0 Posted December 6, 2009 Report Share Posted December 6, 2009 Just been out to the vr and got all these fault.*00522 engine coolant sensor 27-10 implausible signal intermittant.*01259 fuel pump relay (j17) 37-10 open or short to ground intermittent.Is the coolant temp sensor the blue one on the thermostat housing? My intake temp sensor is reading 70+ c on idle and only drops to about 60 when driving, is this normal? And has anybody got a part no for a odb1 ecu? Link to post Share on other sites
UnitedMotorsport 55 Posted December 6, 2009 Report Share Posted December 6, 2009 The engine coolant temp. sensor is the blue one.Best way to check the inlet air temp sensor is to check it with a cold engine when you know it should read the ~same as ambient temp.OBD1 ECU part numbers are 021 906 258 followed by letters. The letters depend on what version of OBD1. Your ECU part number will have been displayed in VAG COM. Link to post Share on other sites
Navlall 0 Posted December 7, 2009 Author Report Share Posted December 7, 2009 What shall I do about the fuel pump relay? Link to post Share on other sites
UnitedMotorsport 55 Posted December 7, 2009 Report Share Posted December 7, 2009 Clear the codes, and see if they come back in a weeks time. Link to post Share on other sites
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