Important! : Map sensor plug with pictures

1. ldavies Saxperience Forum Bum Joined: Mar 2008 Driving my GTI Posts: 2659 Boosted 106 GTI 16V Supercharged

   #1 29th November 2015, 12:30

   Hi guys as most no I had trouble with the car losing power and having to rev to about 5-6k just to get the car to move, and sounding like a tank.
   
   So after close inspection my map sensor wire was split, here's the old one after it was temporarily done until replacement one arrived.
   
   
   
   So got another one but this one has a yellow wire not a white one like the original.
   
   
   
   
   
   Car was running sweet as a nut but the problem has come back only when I first start the car then it goes by the time I get to the end of the street.
   
   Could it be the different colour wire?
2. user_20080 Saxperience Hardcore! Joined: Dec 2007 smurfland. Posts: 17346 Ex saxo owner.

   #2 29th November 2015, 14:33

   Any fault codes come up?
3. ldavies Saxperience Forum Bum Joined: Mar 2008 Driving my GTI Posts: 2659 Boosted 106 GTI 16V Supercharged

   #3 29th November 2015, 15:13

   Quote:

   Originally Posted by stevo67 Any fault codes come up?

   Steve - when I had the diagnostics done it bought up misfire on cylinder 1 and 4, coil pack fault and map sensor.
   
   Changed all them with new spark plugs and then when we checked it afterwards there were no faults?
4. user_20080 Saxperience Hardcore! Joined: Dec 2007 smurfland. Posts: 17346 Ex saxo owner.

   #4 29th November 2015, 15:45

   Ok next suggestion lol unplug battery for 1/2 an hr,then take car on a long drive.
5. ldavies Saxperience Forum Bum Joined: Mar 2008 Driving my GTI Posts: 2659 Boosted 106 GTI 16V Supercharged

   #5 29th November 2015, 15:59

   Quote:

   Originally Posted by stevo67 Ok next suggestion lol unplug battery for 1/2 an hr,then take car on a long drive.

   Will try it Steve, what you thinking???
6. user_20080 Saxperience Hardcore! Joined: Dec 2007 smurfland. Posts: 17346 Ex saxo owner.

   #6 29th November 2015, 17:17

   I'm just thinking that you've cleared the fault codes,fitted new parts & now you just need the ecu to settle itself down.
7. ldavies Saxperience Forum Bum Joined: Mar 2008 Driving my GTI Posts: 2659 Boosted 106 GTI 16V Supercharged

   #7 29th November 2015, 17:32

   Quote:

   Originally Posted by stevo67 I'm just thinking that you've cleared the fault codes,fitted new parts & now you just need the ecu to settle itself down.

   Ah I see, is it worth unplugging the ecu as well as the battery overnight then Steve? Thanks
8. user_20080 Saxperience Hardcore! Joined: Dec 2007 smurfland. Posts: 17346 Ex saxo owner.

   #8 29th November 2015, 19:42

   No just the battery,and it's only a theory and won't do any harm mate.
9. ldavies Saxperience Forum Bum Joined: Mar 2008 Driving my GTI Posts: 2659 Boosted 106 GTI 16V Supercharged

   #9 30th November 2015, 19:11

   Quote:

   Originally Posted by stevo67 No just the battery,and it's only a theory and won't do any harm mate.

   Ok Steve did the battery theory test and took the car out around 1hour later, car appeared to be running well and pulled very strong.
   Started car this morning, problem started again but only for about 5 seconds on idle then didsapered.
   
   I've noticed my car is idling at 1k rpm, should it not be around 750rpm?
10. user_20080 Saxperience Hardcore! Joined: Dec 2007 smurfland. Posts: 17346 Ex saxo owner.

    #10 30th November 2015, 20:38

    Majority of saxo's idle around the 1k or just under mark it's normal.
11. ldavies Saxperience Forum Bum Joined: Mar 2008 Driving my GTI Posts: 2659 Boosted 106 GTI 16V Supercharged

    #11 30th November 2015, 20:46

    Quote:

    Originally Posted by stevo67 Majority of saxo's idle around the 1k or just under mark it's normal.

    Ah ok must be about right then lol.
    Wiggled the map sensor wires about that's been soldered and cut the car out so re taped the 3 wires individually and made sure they won't touch again so will see what tomorrow bring upon start up.
12. rrmurphy3 Newbie Joined: Dec 2015 Posts: 1

    #12 1st December 2015, 04:26

    Hi guys, can anyone assist me with the engine warning light coming on, a Citroen C4 HDI. Loss of power and the on bord computer says anti-polution faulty
    
    Sent from my SM-N9005 using Tapatalk
13. ldavies Saxperience Forum Bum Joined: Mar 2008 Driving my GTI Posts: 2659 Boosted 106 GTI 16V Supercharged

    #13 1st December 2015, 06:35

    Started car this morning all seemed well, drove all way to work without any issues right until I parked up then when car was idling it did it again but a very quick blast for around 3seconds then went on its own again.
14. user_98505 Regular Poster Joined: Sep 2015 Posts: 269 106 Rallye

    #14 1st December 2015, 08:57

    Are you on the standard ECU?
15. ldavies Saxperience Forum Bum Joined: Mar 2008 Driving my GTI Posts: 2659 Boosted 106 GTI 16V Supercharged

    #15 1st December 2015, 09:00

    Quote:

    Originally Posted by Synister Are you on the standard ECU?

    Yes mate stock ecu and injectors
16. user_98505 Regular Poster Joined: Sep 2015 Posts: 269 106 Rallye

    #16 1st December 2015, 11:32

    It's probably not going to help much but after I changed my MAP and ICV for new ones my car ran like a bag of spanners. I cleaned the TPS and left the ECU unplugged overnight.
    I read on here about resetting the TPS and ICV, I thought it would do no harm so I done the TPS reset (Key to 2nd click, WOT and release then start.), turned the car off immediately and done the 7 click ICV reset. I'm not sure which one of the above solved my issue, but it was gone afterward.
17. ldavies Saxperience Forum Bum Joined: Mar 2008 Driving my GTI Posts: 2659 Boosted 106 GTI 16V Supercharged

    #17 1st December 2015, 11:37

    Quote:

    Originally Posted by Synister It's probably not going to help much but after I changed my MAP and ICV for new ones my car ran like a bag of spanners. I cleaned the TPS and left the ECU unplugged overnight. I read on here about resetting the TPS and ICV, I thought it would do no harm so I done the TPS reset (Key to 2nd click, WOT and release then start.), turned the car off immediately and done the 7 click ICV reset. I'm not sure which one of the above solved my issue, but it was gone afterward.

    Thanks mate will give it a try, dosent cost anything any will be another tick of the list lol.
18. user_98505 Regular Poster Joined: Sep 2015 Posts: 269 106 Rallye

    #18 2nd December 2015, 08:46

    That was my thinking too.
    
    Although I took my car for a good scalp last night and it's messing about again. I might have to bite the bullet and buy a M-Magnetti MAP sensor.