Car Runs Perfectly But ECU Light Is On HELP

1. Mallyauto86 Established Member Joined: Nov 2008 France Just Under The Eifel Tower Posts: 1723

   #1 25th May 2010, 18:21

   right basicly went down to local petrol station to fill her up with petrol get home leave the car idling for like 2 minutes and the bloody ECU light comes on
   
   BUT she is running perfectly normal. Ive got the PAS, heater and rear demister problem though at the moment do you reckon its that causing it as i havnt botherd repairing it as i dont need any of um...
   
   can somone please advise i dont fancy paying to get a diagnostic done
2. Mallyauto86 Established Member Joined: Nov 2008 France Just Under The Eifel Tower Posts: 1723

   #2 25th May 2010, 19:47

   Bump....
3. user_10473 Saxperience Forum Bum Joined: Jun 2006 Swansea Posts: 4946 Bianca White Peugeot 106 S2 Rallye, Saxo VTS

   #3 25th May 2010, 19:53

   Disconnect your battery for a while. Overnight if you can.
   
   If the light is still on then get a diagnostic check done as it will be picking up something you aren't noticing.
4. frankie Saxperience Addict Joined: Apr 2006 Frome, down deepest, darkest zummerset Posts: 12971 VTRallye

   #4 25th May 2010, 19:55

   As Mr_p said.
   
   happened to me the other day, just disconnected the ecu for about an hour, and it went off.
   
   went to college the next day, done diaognostic's...nowt.
5. Mallyauto86 Established Member Joined: Nov 2008 France Just Under The Eifel Tower Posts: 1723

   #5 25th May 2010, 20:06

   just wondering i've got no Fan sensor could this be causing it ?
6. MJ05LLY Established Member Joined: Jan 2008 Doncaster Posts: 1616 Audi TTS

   #6 25th May 2010, 20:10

   Cat possibly?
7. Mallyauto86 Established Member Joined: Nov 2008 France Just Under The Eifel Tower Posts: 1723

   #7 25th May 2010, 23:01

   Cat ? i dont have a cat ...
8. jon748 Infrequent Poster Joined: May 2010 Posts: 116

   #8 26th May 2010, 19:36

   light wont go off by disconnecting batt plug it in and get codes go from there if light has come on and stayed on it will be emission related though cat lambda etc
9. Mallyauto86 Established Member Joined: Nov 2008 France Just Under The Eifel Tower Posts: 1723

   #9 27th May 2010, 03:36

   Quote:

   Originally Posted by jon748 light wont go off by disconnecting batt plug it in and get codes go from there if light has come on and stayed on it will be emission related though cat lambda etc

   well it went off earlier think it was an electrical problem with my headlights causing variation somwhere.
   
   Seems to be ok now.
   
   Still my fan decided to blow up on me today
   
   OH I LOVE SAXOS
10. manny L-plater Joined: May 2008 Coventry Posts: 29 Saxo Vtr

    #10 15th September 2010, 23:11

    my saxo vtr has a rare issue which i aint never come across before, after ive indicated my ecu will carry on making that clicking sound then it will stop for a second then start again, same if i press the horn... does any1 know what could be causing this