engine diagnostic light on

1. user_40784 Saxperience Forum Bum Joined: Jan 2010 London Posts: 2768

   #1 14th April 2010, 20:31

   It just came on this afternoon for no reason. The car is not overheating, low on power, smoking or anything like that. Any ideas what it could be?
2. jinx Frequent Poster Joined: Jun 2008 Staffordshire Posts: 745 Saxo - Furio 1.4

   #2 14th April 2010, 20:41

   Missfire from coil pack??, get it checked out!
3. Claki Established Member Joined: Aug 2009 Horsham Posts: 1855 Leon Cupra 200 TDI

   #3 14th April 2010, 20:41

   mines done this.. came on shortly after i bent the 4-2-1 mani back to shape because a previous owner has smashed it into the floor.
4. user_40784 Saxperience Forum Bum Joined: Jan 2010 London Posts: 2768

   #4 14th April 2010, 22:37

   The cat hasnt been touched and it cant be missfiring - its very obvious if something is miss firing.
   
   How much does citroen charge to plug my car in their diagnostic machine? If its too expensive i might leave it as it might not be anything serious or worth fixing.
5. 123rspeed L-plater Joined: Mar 2010 Chesterfield Posts: 41 2000 'X' 1.6VTR

   #5 14th April 2010, 22:43

   I took mine to an independant citroen specialist and he charged me £25, fault read up as the CAT, he knocked the light off and told me to come back if the management light came on again just to double check the fault, it did 3 days later and he re-checked it for free.
   
   I'd imagine most garages will charge roughly the same £20-£30.
6. user_40784 Saxperience Forum Bum Joined: Jan 2010 London Posts: 2768

   #6 14th April 2010, 22:59

   Quote:

   Originally Posted by 123rspeed I took mine to an independant citroen specialist and he charged me £25, fault read up as the CAT, he knocked the light off and told me to come back if the management light came on again just to double check the fault, it did 3 days later and he re-checked it for free. I'd imagine most garages will charge roughly the same £20-£30.

   thanks speed, yea - i think mine might be a dead catalytic converter or a faulty lamda sensor as my car isnt down on power, smoking, burning oil or smoking. its runs and idles really smooth.
7. 123rspeed L-plater Joined: Mar 2010 Chesterfield Posts: 41 2000 'X' 1.6VTR

   #7 14th April 2010, 23:46

   The garage wanted £250 for a new CAT and labour, I went to my local car shop, guy that works there has a mint mk1 saxo vtr, he advised me to get a fuelparts CAT, came with a 2year guarantee and cost me £95. fitted it myself in 40mins saved myself a bit of cash for other things I'd rather be spending my money on!! lol
   
   It sounds like its more than likely to be CAT or lambda, but try and get it checked soon as to be sure. Better to be safe than sorry! (god! I sound like my mum)
8. vtrsaz Infrequent Poster Joined: Feb 2010 tipton Posts: 248 saxo vtr mk2 51 plate 3.2 omega mv6 02 plate

   #8 15th April 2010, 20:53

   Quote:

   Originally Posted by johnr32 It just came on this afternoon for no reason. The car is not overheating, low on power, smoking or anything like that. Any ideas what it could be?

   If its anything like my omega i had to relocate two of the lambas further back down towards the rear of the car,as normally the pre cat lambas begin to fail,sending the management light on,but still runs ok,just annoying.
9. user_40784 Saxperience Forum Bum Joined: Jan 2010 London Posts: 2768

   #9 15th April 2010, 23:16

   strange but the engine management light just turned off this afternoon and has stayed off so far.....
10. akuakabucy Frequent Poster Joined: Feb 2010 Liverpool Posts: 596 Mk5 Golf GTTDI, Vauxhall Vivaro

    #10 16th April 2010, 11:44

    get an obdII reader off ebay, there only £20 and will tell you the fault. I have one and there great for the ££, shame yur miles away or you could have borrowed mine. If no drop in performance though id say it would be faulty lambda.
11. vtrsaz Infrequent Poster Joined: Feb 2010 tipton Posts: 248 saxo vtr mk2 51 plate 3.2 omega mv6 02 plate

    #11 16th April 2010, 12:59

    Quote:

    Originally Posted by akuakabucy get an obdII reader off ebay, there only £20 and will tell you the fault. I have one and there great for the ££, shame yur miles away or you could have borrowed mine. If no drop in performance though id say it would be faulty lambda.

    Wouldent be a faulty lamba,as said the precat begins to fail with age,and as the lambas are sensitive(well on vx anyway) it picks up on this,so it turns the eml on,so to compensate for this just move the lamba back.
12. CoolC Established Member Joined: Oct 2007 Swindon Posts: 1569 Jap Import Supra 3.0TT 430bhp 6sp

    #12 16th April 2010, 16:52

    Even though your lights gone out ring around some local garages and get some prices to put it on a diagnostic, its not a great amount of money. My local does it for £26
13. 123rspeed L-plater Joined: Mar 2010 Chesterfield Posts: 41 2000 'X' 1.6VTR

    #13 16th April 2010, 17:54

    Quote:

    Originally Posted by CoolC Even though your lights gone out ring around some local garages and get some prices to put it on a diagnostic, its not a great amount of money. My local does it for £26

    I'll second that, I would still have it checked out mate to be on the safe side.