Can anyone help? Dodgey sensor?

1. vaux88 Infrequent Poster Joined: Feb 2010 Fareham Posts: 154 Citroen Saxo VTR

   #1 6th April 2010, 12:12

   Afternoon chaps,
   
   I know that no one can tell me why an EMlight comes on, but mine has come on a few times now and after a day or two turns itself back off. It's on at the moment but I'm pretty confident it'll turn back off soon!
   
   Is this common? Anyone got any ideas?
   
   Thanks
2. Peter_D Saxperience Post Whore Joined: Jun 2004 Helmsdale Posts: 8832 DC5 Teg

   #2 6th April 2010, 12:19

   You basically answered your own question, no one can tell you what it means unless it's plugged into a diagnostics, and that will instantly tell you your problem!
   
   Does the car drive ok?
3. vaux88 Infrequent Poster Joined: Feb 2010 Fareham Posts: 154 Citroen Saxo VTR

   #3 6th April 2010, 12:41

   Yeah, I was just wondering if the light turning off means the problem's gone? Car drives fine, the light came on a few weeks ago and the car stuttered/lost power and found out it was the coil pack so replaced it.
   
   Since then it drives fine, but the light has a mind of it's own!
4. Peter_D Saxperience Post Whore Joined: Jun 2004 Helmsdale Posts: 8832 DC5 Teg

   #4 6th April 2010, 12:47

   Theres people who can switch the light off for you and doesn't cost much.
   
   Does the light need properly switched off once the problems been sorted, i'm not sure?
5. vaux88 Infrequent Poster Joined: Feb 2010 Fareham Posts: 154 Citroen Saxo VTR

   #5 6th April 2010, 12:55

   It usually turns itself off! Yeah when the problem's solved it needs to be switched off (ECU wiped) I think but it was turned off after the coil pack went in. Been on and off since.
   
   May be a faulty EMlight? Thats best case scenario mind you!
6. gaz4399 Saxperience Forum Bum Joined: Jul 2007 Chester Posts: 2850 1275 mini

   #6 6th April 2010, 12:58

   think you can disconnect battery for a certain period of time to clear codes, maybe someone can confirm? i just put it in our diagnostic machine and clear all codes
7. nicole_ Saxperience Post Whore Joined: Jul 2009 Newcastle Posts: 6713 VTS & EK9

   #7 6th April 2010, 13:41

   could be an intermittent fault
   in citroen/pugs theres 84 different reasons for an em light iirc, so only way to tell is by plugging it into diagnostics
   thats what we have to tell people at work anyway
8. vaux88 Infrequent Poster Joined: Feb 2010 Fareham Posts: 154 Citroen Saxo VTR

   #8 6th April 2010, 13:57

   Cheers for the replies.
   
   84 reasons? That is pure knowledge!
   
   Think I'll see if it goes off again, if not I'll be back in the garage weeping over a bank statement.
9. user_31124 Regular Poster Joined: Feb 2009 Piesok,Slovakia Posts: 254 Silver MK II VTS 1.6 16V 2002

   #9 6th April 2010, 13:59

   Quote:

   Originally Posted by gaz4399 think you can disconnect battery for a certain period of time to clear codes, maybe someone can confirm?

   that never worked for me though...