Important! : electrics

1. makjoh Newbie Joined: Oct 2016 Posts: 4

   #1 19th October 2016, 17:39

   Hello......neewbie here requesting urgent advice. I booked my saxo in for an mot this morning and was horrified to see, when starting to drive, that my speedo and rev counter were not working. Also the fuel gauge and mileage indicator were dead. Needless to say I had to cancel the mot. I notice that when I turn the lights on, the speedo and rev counter lights are flickering . The ecu light goes out when the engine is started. Has my power wash of the engine bay done this?
   
   I have wd 40'd all sensors that I can see and also the ecu. Any advice would be appreciated. Thanks
2. user_20080 Saxperience Hardcore! Joined: Dec 2007 smurfland. Posts: 17346 Ex saxo owner.

   #2 19th October 2016, 19:00

   Quite possibly,you'd need to take the car for a reasonably long drive to dry it out,has it got lumpy idling?If not and it's a mk2 saxo try disconnecting the battery for 30mins to reset things.If still not working check connections behind the speedo.
3. makjoh Newbie Joined: Oct 2016 Posts: 4

   #3 19th October 2016, 22:20

   Thanks stevo
   Tried all your suggestions but no luck. The engine is idling perfectly, no lumpiness or hesitation. Maybe give it a few more dry out days before I start taking the dash apart
4. Ben_SaxoForte Saxperience Forum Bum Joined: Mar 2009 Stoke-on-trent Posts: 2640 Mk5 Golf GTTDI Mk2 VTR Project

   #4 19th October 2016, 23:52

   Might be obvious but have you checked through all the fuses Aswell? May have blown something if it got wet
5. makjoh Newbie Joined: Oct 2016 Posts: 4

   #5 20th October 2016, 12:09

   Thanks ben.....I took out the fuses one by one and cleaned and wd 40'd them all. Still no luck. I am assuming its a wet contact somewhere because the dash light keeps flickering trying to stay alight when the lights are turned on. I've noticed another fuse box with larger fuses. What circuits do these run?
6. Phaeton Regular Poster Joined: Aug 2015 Sunny Worksop Posts: 441 1989 MK1 MR2 with V6 3.0L Camry engine

   #6 20th October 2016, 12:18

   Make sure your battery terminals are clean & tight, also look at the earths make sure they are clean & tight.
7. makjoh Newbie Joined: Oct 2016 Posts: 4

   #7 21st October 2016, 10:11

   All clean and tight with good earths.....still no fuel gauge...speedo...rev counter or milometer (which i need to mot the car) and the dash lights have stopped flickering now, instead I have total darkness at the dash when the lights are turned on.
8. Phaeton Regular Poster Joined: Aug 2015 Sunny Worksop Posts: 441 1989 MK1 MR2 with V6 3.0L Camry engine

   #8 21st October 2016, 10:28

   I had this once & just disconnected the battery for about 5 minutes then reconnected it