Hi. I've got a 1997 cordoba 1.9d 1y, that has an intermittent glow plug problem. Sometimes when it's warm, sometimes stone cold. When ever the glow plug light won't work, and it eventually starts, the oil light won't stop flashing and the rev counter won't work. Leave it a while and all is well again, sometimes. I thought I'd fixed it once, I unplugged the temp sensor and they worked, so I changed the sensor, all good for 3 weeks or so then it all started again but this time unplugging the coolant sensor didn't help.
Just hoping someone has come across this problem before. Also I'm struggling for wiring diagrams as I can't find one specifically for glow plugs on autodata or Haynes manual. Thanks in advance I hope!
Mark