faulty Throttle Position Sensor ? engine management light

1. Hodgins91 Established Member Joined: Jun 2008 South Wales Posts: 1051 '52 Saxo VTS

   #1 4th September 2009, 12:47

   problem numbers 1 and 2 sorted now lol
   
   number 3, engine management light is on, had it plugged in and its the throttle position sensor, but the car runs fine apart from the stated issues lol and the guy in the garage couldnt diagnose it either, he said the car shouldnt rev normal or run properly if that was shot, ive cleaned the throttle body out, had the sensor off cleaned all that still no joy. doubt it makes a difference but im running a decat but im sure that doesnt bring the EM light on
   
   any suggestions??
   
   cheers guys
2. grumpypants Regular Poster Joined: Jun 2009 Llantwit Major, Vale of Glamorgan Posts: 429 Vauxhall Corsa 1.0

   #2 4th September 2009, 13:00

   Not sure on problems No1 or 2, but problem No 3 you say that you have had a diagnostic and come up with a faulty throttle position sensor. It may be that it requires re-setting but even if it is on its way out the ECU lets the vehicle run in 'limp mode' in other words even though the component isn't 100% efficient it will run the vehicle at less than 100% efficiency but probably will have to be seen to very soon.

   1 user thanked this post: Hodgins91
3. furio-james Frequent Poster Joined: Jan 2008 Chippenham Posts: 828 E36 330i coupe (converted)

   #3 4th September 2009, 13:02

   Number 1: Could be many things, most probally something to do with the driveshafts or wheel bearings could even be brakes? Your best bet is to get it looked at by a mechanic.
   
   number 2: Sounds like the clutch release bearing, is it when the clutch is up? And when you depress it the noise goes? To replace the clutch release bearing your going to have to bite the bullet and replace the whole clutch (like i did).
   
   number 3: If it is the sensor try some 'carb cleaner' if not get another one from someone breaking a working VTS if possible so it will be cheaper!
   
   Hope this helps

   1 user thanked this post: Hodgins91
4. Hodgins91 Established Member Joined: Jun 2008 South Wales Posts: 1051 '52 Saxo VTS

   #4 4th September 2009, 13:33

   cheers for the replys guys,
   
   my dad did say the brakes could be at fault,
   
   with the clutch the nosie is when its dipped, disengaging the drive to the feels,
   
   going to go have a clean of the sensor now
5. Hodgins91 Established Member Joined: Jun 2008 South Wales Posts: 1051 '52 Saxo VTS

   #5 4th September 2009, 17:19

   cleaned all the throttle body, still no joy
6. Rik1254 Infrequent Poster Joined: Nov 2008 Abertillery Posts: 181 '98 Saxo VTR, '93 106 Keywest, '92 106 XSi

   #6 5th September 2009, 16:36

   No. 1 would be your CV joint's, new drive shafts would sort it out most likely
   could also be the brakes as i had the problem on the 306 yesterday but id do the drive shafts first
   
   No. 2 change the clutch
   
   No. 3 Engine management light? too complex....PRE ECU FTW haha
   
   No. 4 ... there wasnt a number 4 was there?
7. Hodgins91 Established Member Joined: Jun 2008 South Wales Posts: 1051 '52 Saxo VTS

   #7 5th September 2009, 21:05

   1. is sorted, i forgot to check power steering fluid levels
   
   still got the others
8. Hodgins91 Established Member Joined: Jun 2008 South Wales Posts: 1051 '52 Saxo VTS

   #8 21st September 2009, 23:36

   ive sorted all my other problems. cleaned out the throttle body and nothing. the car drives 99% normal apart from a few flat spots when cold.
   
   its starting to annoy me now,
   
   thanks for any help!
9. kesalap Newbie Joined: Apr 2013 United Kingdom Posts: 5 Saxo vtr

   #9 10th October 2013, 16:14

   Quote:

   Originally Posted by Rik1254 No. 1 would be your CV joint's, new drive shafts would sort it out most likely could also be the brakes as i had the problem on the 306 yesterday but id do the drive shafts first No. 2 change the clutch No. 3 Engine management light? too complex....PRE ECU FTW haha No. 4 ... there wasnt a number 4 was there?

   Answer no.2 I hat same that was inner shaft bearing. ......
10. user_20080 Saxperience Hardcore! Joined: Dec 2007 smurfland. Posts: 17346 Ex saxo owner.

    #10 11th October 2013, 15:41

    To the op do your revs take ages to come back down again after revving?
11. Ben_SaxoForte Saxperience Forum Bum Joined: Mar 2009 Stoke-on-trent Posts: 2640 Mk5 Golf GTTDI Mk2 VTR Project

    #11 11th October 2013, 23:42

    Sorry if I have missed something but a decat will bring on the EML if you are running 2 lambda sensors then the one that would be after the cat should be plugged into the car but sleeved to turn off the light.