Saxo vtr 2001 chugging and popping

1. dave-in-the-saxo-vtr Infrequent Poster Joined: Sep 2010 Ilkes, Derbyshire Posts: 173 Saxo vtr 51 plate ltd edition

   #1 10th January 2012, 19:25

   Hi All,
   
   I have a citroen saxo vtr 2001 51 plate. It has been popping and chugging recently while driving. Then yesterday an orange light started flashing and the car felt like it was only firing on 2 cylinders and was dipping the revs near to the point of cutting out. The orange light was flashing at first then stayed on and has been on since. Went to the car today and it started fine then after 30 seconds went weird and started chugging and misfiring and sounding like a general bag of nails. When driving the car it really struggles and you can feel it misfiring. I had to keep it in second to get up a hill at 40mph earlier. Not sure if this has any bearing on it but over the last few weeks the revs have been jumping up and holding high revs while stationery intermittently. It doesn't just do the misifiring when warm as it did it earlier straight from cold. Any ideas what is wrong with my shatxo???
   
   Cheers everybody
2. dave-in-the-saxo-vtr Infrequent Poster Joined: Sep 2010 Ilkes, Derbyshire Posts: 173 Saxo vtr 51 plate ltd edition

   #2 11th January 2012, 07:57

   I have noticed that it appears if I can get the car started and keep the revs high over 2.5k revs it will seem to be fine until the revs drop below this then it just struggles like mad and seems to be misfiring big time!!!
3. dave-in-the-saxo-vtr Infrequent Poster Joined: Sep 2010 Ilkes, Derbyshire Posts: 173 Saxo vtr 51 plate ltd edition

   #3 11th January 2012, 16:43

   Nobody got any ideas or had the same kind of issue??
4. Cam Saxperience Post Whore Joined: Nov 2010 Kent Posts: 8439 Gen 7 Celica 190.

   #4 11th January 2012, 16:46

   It will be the coilpack or a spark plug. If you get a fault code reader on it, it will be p0300 missfire detected

   1 user thanked this post: dave-in-the-saxo-vtr
5. user_20080 Saxperience Hardcore! Joined: Dec 2007 smurfland. Posts: 17346 Ex saxo owner.

   #5 11th January 2012, 16:52

   Could be faulty lambda sensor.

   1 user thanked this post: dave-in-the-saxo-vtr
6. dave-in-the-saxo-vtr Infrequent Poster Joined: Sep 2010 Ilkes, Derbyshire Posts: 173 Saxo vtr 51 plate ltd edition

   #6 12th January 2012, 08:00

   Thanks for the replies guys. I changed the plugs last night and it drove fine at first then I stopped and turned the car off and left it for around 30 minutes and went back to it for the return journey home and again it was doing the same thing ...maybe the coil pack being removed made some sort of difference?? i drove in to work this morning and the orange light is still on but the car didn't do any misfiring like it has been doing. It felt like a slight misfire but nothing major and I managed to get to work on all 4 cylinders. I picked up another coil pack last night but the car wouldn't start with that on so I am thinking maybe I should try another one if I can source one and see if that clears it up....if not then lambda sensor it is! it is weird how one minute it is fine then the next it sounds like a bag of spanners
7. dave-in-the-saxo-vtr Infrequent Poster Joined: Sep 2010 Ilkes, Derbyshire Posts: 173 Saxo vtr 51 plate ltd edition

   #7 12th January 2012, 21:46

   UPDATE - Went out to the car tonight as I needed to pop to the shops....I have changed only the spark plugs so far!!! The orange light has gone off and the car is no longer chugging and misfiring!!! WTF??????????????
8. DundeeUnited Established Member Joined: Nov 2010 Invergowrie Posts: 1006 Saxo VTR

   #8 12th January 2012, 21:49

   Quote:

   Originally Posted by dave-in-the-saxo-vtr UPDATE - Went out to the car tonight as I needed to pop to the shops....I have changed only the spark plugs so far!!! The orange light has gone off and the car is no longer chugging and misfiring!!! WTF??????????????

   it will be the lambda sensor mate, unless it judders under pressure?

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9. dave-in-the-saxo-vtr Infrequent Poster Joined: Sep 2010 Ilkes, Derbyshire Posts: 173 Saxo vtr 51 plate ltd edition

   #9 13th January 2012, 07:55

   Nope it feels fine mate. Really weird!!! I will grab a new lambda sensor
10. dave-in-the-saxo-vtr Infrequent Poster Joined: Sep 2010 Ilkes, Derbyshire Posts: 173 Saxo vtr 51 plate ltd edition

    #10 19th January 2012, 10:14

    Well.....the orange light is now back on and the car cuts out now and then. If I turn the engine off and then back on the orange light stays on but the misfiring stops for a bit. Stumped so I have invested in a fault code reader and will see how I get on with it