2001 Peugeot 206 automatic struggles to pull away when engine warm

Car: Peugeot 206
Year: 2001
Variant: 1.4 lx Auto
Categories: Electrics, ECU, Warnings & Lights
Hi All,
Just brought a 206 1.4 lx Auto for the wife. hpi's fine, had 2 previous owners (Car not the wife!) 60,000 miles and looks great; had the car a couple of days and have noticed that when the car has warmed up it struggles to pull away. This problem is only when the car is warm; when the cars cold/warm/hot it ticks over lovely with no sign of stuttering and again when cold/warm/hot drives perfectly; the problem is only when we stop - i.e. at trafic lights - and then pull away again.
The guy we brought the car from is a dealer and has had a look over the car and got me to drive to a gearbox specialist who did a test drive before stating that there is nothing wrong with the gearbox, he suggested perhaps an engine management system problem or that the cat was playing up. The dealer has said that if we are still not happy after a couple of weeks, he'll find another car for us.
We'd love to keep this car and apart from this problem is perfect.
One other thing; we had the oil/filter and cambelt changed as part of the deal.
Please help!
Many Thanks
Mark
Posted: Aug 5, 2010 (13 years ago)
check the gearbox oil and top up/change as required,check for any trouble codes
Posted Aug 5, 2010 (13 years ago)
Thanks for the advice i'll check.
However, the gearbox specialist that i took the car to did give the car quite a hard test drive and he could have carried out work - if required - as the guy i brought the car from said that he was going to pay.

Posted Aug 5, 2010 (13 years ago)
The gearbox ecu does have a memory and actually adapts to your driving style. give it a couple of days to get used to your style of driving and see if it improves/learns your driving
Posted Aug 5, 2010 (13 years ago)
What i can't understand is how it only lacks power when the cars warmed up? I had a similar problem a few years back with a renault laguna, the problem then was a faulty sensor which meant the car was receiving the wrong information.

Is there a way that i can test the cars Cat? so that i can rule that possible problem out.
Posted Aug 5, 2010 (13 years ago)
a cat fault would generally bring a light on. it may be a sensor fault but i would still give it a couple of days to see if it gets any better.
Posted Aug 5, 2010 (13 years ago)
As "2145simon" suggests , get it scanned and see what shows ?
Posted Aug 5, 2010 (13 years ago)
if the cat was faulty it would`nt allow the engine to rev up properly and you would most likely hear it rattling where the cat is broken up inside,i don`t think your cat is the problem.since the gearbox specialist looked at it has the fault reocurred?
Posted Aug 5, 2010 (13 years ago)
Thanks for all your suggestions guys.
Re: the Cat; doesn't appear to be broken up as i can't hear any rattling, the gearbox guy had his assistant rev the car up whilst he held his hand over the exhaust pipe and it seemed like there was plenty of pressure their.

Like i have mentioned; the car drives great with good pull through the gears, no warning codes/lamps are lit but when the car is warm it definately struggles to pull away from standing, normally this wouldn't be a problem but there are times when you need to pull away a bit with a bit more oomph which at the moment we don't have; you literally put the accellerator to the floor and the car just poodles away, which as i mentioned earlier is not the case when the car is cold!
cheers all
Mark
Posted Aug 6, 2010 (13 years ago)

"I had a similar problem a few years back with a renault laguna, the problem then was a faulty sensor which meant the car was receiving the wrong information "

Wasn't engine coolant temp sensor ?
Posted Aug 6, 2010 (13 years ago)
Don't think it was to do with water temperature. I explained to the Renault tech that the car was behaving rough when warm and he suggested this sensor, (suggested i short out the connector with a bit of wire) this cured the problem, the sensor itself looks a little like a small spark plug. Anyway thats enough about the laguna... with regards to the Peugeot...Speaking to a mechanic friend of a friend; he says that he's heard of some 206's automatics sticking in 4th gear... anyone else heard of this?

I'm getting the car system scanned on Monday so i'll let you know how that goes.

Oh another thing.. i checked the air filter today, looks quite dirty.. that wouldn't be enough to give the car its problem would it?
Posted Aug 6, 2010 (13 years ago)
Hi All,
Just to give you all an update. Had a scan done this morning, it showed a faulty sensor and a problem with the catalyst.
I'll contact the dealer to see what he suggests but can anyone tell me:
Can a faulty Cat be repaired? do they sometimes get blocked and need un-blocking? the Cat doesn't have any knocking noises.

Cheers,

Mark
Posted Aug 9, 2010 (13 years ago)
sounds like the cat may be a non genuine one!
Posted Aug 12, 2010 (13 years ago)
I have now changed the sensor and had a new Type approved Cat fitted; however the problem still remains!!!

I am hoping that the car needs a few days to settle (As per previous suggestions) failing that i'm back to square one!

It's a lovely car and like stated before, drives really well when cold and once moving. I do hope that we're resigned to putting up with this problem!

Thanks to you all for your suggestions.

Mark
Posted Aug 13, 2010 (13 years ago)
Hi All... again,

The case continues...
I have now changed the O2 sensor - in front of AND behind - the Cat. I have also changed the MAP sensor.
I have taken the small air hoses off and cleaned them out (One section was really blocked) and I have taken the throttle housing off and cleaned it thoroughly.
Unfortunately the problem is still present!
(Note: I am also erasing problems on the Code Reader as I'm changing things)
I currently have 2 errors showing:
MAP sensor circuit - yet this sensor has been changed.
IAT (Intake Air Temperature) Sensor - this is part of the Throttle housing on my particular model.

Questions:
1) Do you think that I may have brought a faulty MAP sensor? (and yes it was new)
2) Is the IAT sensor the item shown (Photo attached) as this was quite mucky)
3) Is it possible that I need to get Peugeot to re-set the system?
4) Does anyone know of a Peugeot mechanic near Sittingbourne?

Please help as this has been going on for too long and the Mrs is getting a bit annoyed now!

Mark
Posted Sep 17, 2010 (13 years ago)

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