Temporary EML.

1. DanDrury Newbie Joined: Aug 2012 Stevenage Posts: 18 Citroen Saxo VTR - Silver

   #1 7th September 2012, 22:27

   So driving the last few days, occasionally the EML stays on for about 5 seconds, then goes out. When it first kicks in, there's a momentary hesitation on acceleration. Then it's fine till the light goes out.
   
   I've had codes read, the only error thrown up is for the coolant temp sensor as it constantly says -30oC. Could that be anything to do with it?
   
   Cheers!
2. user_20080 Saxperience Hardcore! Joined: Dec 2007 smurfland. Posts: 17346 Ex saxo owner.

   #2 8th September 2012, 19:58

   In a word yes,thats why the eml comes up.
3. DanDrury Newbie Joined: Aug 2012 Stevenage Posts: 18 Citroen Saxo VTR - Silver

   #3 9th September 2012, 21:12

   Thanks, I'll get a replacement CTS.
   
   So how exactly does this cause the momentary hesitation?
4. Wee_monkey1987 Regular Poster Joined: Sep 2011 Hertfordshire Posts: 250 2000 Saxo Woodland Green VTS, 2002 Mazda MX5

   #4 10th September 2012, 11:57

   ECU fuelling and spark timing are based on engine loads - engine speed and intake pressure/throttle position. Coolant temperature sensor as well as other sensors such as knock, acts as a trim for the fuel and ignition timing to be refined based on engine operating conditions.
   
   The reason your car keeps bogging under rapid acceleration is because the ECU will detect a sudden increase in manifold pressure via throttle position and the MAP sensor, however your CTS is telling the ECU the engine is cold even though it isn't. Therefore the ECU map/lookup table will be written for the ecu to advance/retard the igniton by X amount giving you the bog/hesitation based on that engine speed and load.
5. DanDrury Newbie Joined: Aug 2012 Stevenage Posts: 18 Citroen Saxo VTR - Silver

   #5 11th September 2012, 10:09

   Wow, there's a lesson learnt. Thanks mate.
   
   So I'll get to replacing that. Euro car parts wanted nearly £25 does that sound right?
   
   Or this from eBay, but not sure if it's genuine:
   http://bit.ly/RGEyrN
   
   There is a citroen dealer/parts office near my work would it be worth buying directly from them?
   
   Cheers
6. Wee_monkey1987 Regular Poster Joined: Sep 2011 Hertfordshire Posts: 250 2000 Saxo Woodland Green VTS, 2002 Mazda MX5

   #6 11th September 2012, 11:38

   eurocarparts seem high you can bag one for around £15 from allparts
   
   as for the ebay one that's for a C3 wrong type!
   
   The sensor on a VTR should look like one of these
   
   
   
   blue connection not green, also try GSFparts based in Birmingham there good, cheap and quick on delivery, go to there actual website though there ebay shop is painfully annoying
7. DanDrury Newbie Joined: Aug 2012 Stevenage Posts: 18 Citroen Saxo VTR - Silver

   #7 11th September 2012, 13:11

   
   
   Am I right in thinking its this? If not, could anyone point me to where it is?
8. Wee_monkey1987 Regular Poster Joined: Sep 2011 Hertfordshire Posts: 250 2000 Saxo Woodland Green VTS, 2002 Mazda MX5

   #8 11th September 2012, 13:48

   yeh sorry that looks right my pics are off the VTS
9. DanDrury Newbie Joined: Aug 2012 Stevenage Posts: 18 Citroen Saxo VTR - Silver

   #9 11th September 2012, 16:11

   Ok, excellent. Thanks mate, I'll get this replaced
10. DanDrury Newbie Joined: Aug 2012 Stevenage Posts: 18 Citroen Saxo VTR - Silver

    #10 15th September 2012, 21:26

    Okay, I got a replacement CTS from GSF Parts.
    
    Swapped it over, took it for a drive.
    
    After about 15mins it felt a bit better, packed up a little quicker and certainly pulled better lower revs, also felt a lot
    smoother.
    
    Drove home from work yesterday, and the EML came back on! Got someone coming down with a code reader Tuesday to re read them.
    
    Also the light above the temp gauge still comes on 15secs after starting the car.
11. Cam Saxperience Post Whore Joined: Nov 2010 Kent Posts: 8439 Gen 7 Celica 190.

    #11 16th September 2012, 21:29

    Quote:

    Originally Posted by Aidan-106 typical french

    Helpful post right there.
12. DanDrury Newbie Joined: Aug 2012 Stevenage Posts: 18 Citroen Saxo VTR - Silver

    #12 16th September 2012, 21:52

    Quote:

    Originally Posted by Aidan-106 typical french

    Yep, thanks. As above, helpful.