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 Posted: Fri Aug 12, 2011 1:17 pm |
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Joined: Aug 12, 2011
Posts: 16
Trade Rating: 0
Location: United Kingdom
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Hi there guys & girls, new to the French sceen...
Basically ive just bought a 206 1.1 LX Had it a month been lovly, no problems.. but this evening.. It was reving on its own to around 3-4k without touching the throttle....
And seems to have drunk quite a bit of petrol as well.
Its only every now and again it does it... So far ive cleaned the butterfly valve on the throttle. As i fort it may of been that sticking.
Any ideas or pointers would be greatly appriciated.
Many Thanks!
Adz
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Posted: Fri Aug 12, 2011 1:18 pm |
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Joined: Feb 09, 2010
Posts: 2207
Trade Rating: +10
Location: exhall, bedworth, coventry
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idle control valve needs replacing/ cleaning
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Posted: Fri Aug 12, 2011 1:29 pm |
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Joined: Aug 12, 2011
Posts: 16
Trade Rating: 0
Location: United Kingdom
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Sorry to sound silly... Is that on the tb bit at top of the engine? How do they come of? And clean with brake cleaner?
Thanks once again!
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Posted: Fri Aug 12, 2011 1:50 pm |
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Joined: Feb 09, 2010
Posts: 2207
Trade Rating: +10
Location: exhall, bedworth, coventry
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take a look at the faq's and the how-to's on here. pretty sure its covered in there as i cant remember off the top of my head
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Posted: Fri Aug 12, 2011 1:52 pm |
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Joined: Aug 12, 2011
Posts: 16
Trade Rating: 0
Location: United Kingdom
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Hi, i did have a look in there, and all i can see is things about anti freeze and coolent and oil advice etc. 
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Posted: Fri Aug 12, 2011 2:17 pm |
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Joined: Aug 01, 2011
Posts: 390
Trade Rating: 0
Location: Bath UK
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Have a look on eBay and you'll find pictures of 206 stepper motors
But the fact your engine is revving up to 4k seemingly on its own then it might well be your MAP sensor at fault which tells the ECU how much air it believes the engine is taking in and the ECU adjusts the fuel to suit that airflow. So the fact you're also burning fuel might point more to the MAP as the idle stepper motor only comes in to play at idle rpm
Even then there may be nothing wrong with your MAP sensor and may be a simple poor contact there. Easy to spot if you have an OBD interface giving you live engine running data but a first step might be to disconnect the MAP sensor and spray the connections there with electrical contact cleaner (nothing else), let it dry and then give it a try
Sometimes you need to reset the ECU by disconnecting the battery for an hour or so and then it recalibrates what it sees as the "new" MAP sensor
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Posted: Fri Aug 12, 2011 3:09 pm |
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Joined: Sep 12, 2010
Posts: 1912
Trade Rating: +4
Location: Manchester
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Posted: Fri Aug 12, 2011 3:15 pm |
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Joined: Aug 12, 2011
Posts: 16
Trade Rating: 0
Location: United Kingdom
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Is the map sensor underneath on that tb bit? like before it enters the butterfly valve bit?
To reset the ecu.. Isit a case of just leaving the battery disconnected for a hour and connecting back on.. then job done kind of thing?
Thanks
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Posted: Fri Aug 12, 2011 3:42 pm |
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Joined: Mar 24, 2010
Posts: 303
Trade Rating: +1
Location: UK
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Posted: Fri Aug 12, 2011 3:53 pm |
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Joined: Feb 09, 2010
Posts: 120
Trade Rating: 0
Location: bristol
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i had same problem on my first 206. it was a faulty coilpack. changed it and had no problems, i was able to drive round the block without touching the accelerator.
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Posted: Fri Aug 12, 2011 5:05 pm |
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Joined: Aug 12, 2011
Posts: 16
Trade Rating: 0
Location: United Kingdom
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That battery thing sounds bit technical to me, will it muck it up if i dont do it correct? or could i start again?
Thanks
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Posted: Sat Aug 13, 2011 12:16 am |
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Joined: Aug 01, 2011
Posts: 390
Trade Rating: 0
Location: Bath UK
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Posted: Sat Aug 13, 2011 2:34 pm |
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Joined: Aug 12, 2011
Posts: 16
Trade Rating: 0
Location: United Kingdom
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Oh right, didnt realise it was like that lol... I read through that post thing and it was saying about holding this button, putting headlights on etc.. lol.
And the stepper motor?? what bit is that sorry.
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Posted: Sat Aug 13, 2011 4:12 pm |
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Joined: Mar 24, 2010
Posts: 303
Trade Rating: +1
Location: UK
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From what I understand, you should follow the procedure for battery disconnection 'whenever a vehicle battery has to be disconnected' as described in that topic. And it's not really that complicated - just read through it first so you know what you're doing.
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Posted: Sat Aug 13, 2011 4:58 pm |
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Joined: Mar 27, 2010
Posts: 3017
Trade Rating: 0
Location: Running from Ant and Lee and Adam...........
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Is the battery in good condition?
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the only picture i could find that was half decent was this one lol (sorry)
