Anti Pollution Fault with LARGE loss of power- help!

[drsusan]

Hi there, I have a 2004 Peugeot 206 CC 2.0 Litre. About 2 weeks ago I had an anti pollution fault come up, last about a day then goes, back again every 3-4 days. Today on my way to garage the light came on and I experienced a large loss of power. When idling the engine was sputtering on the verge of stalling and I had to rev up to about 400 just to change gears. By the time I got to the garage the engine had kicked back to life, literally there was a jolt and the power was back. By the time they plugged it into the computer the warning light had gone out and all they could do was reset the system.
They believe it could be due to
1. Spark plugs
2. Coil pack
3. Catalytic converter

Im really not keen on spending money just randomly seeing which one helps as Im sure you understand! so would appreciate any input if anyone has had the same problem
Ive had the car 11 months, done about 30,000 miles. Recently had the exhaust replaced so dont think its that!. And its unleaded.

Thankyou for your help

[Cindywin]

I have the same car. second owner. done only 25000Km. Please help us.

[craigdmjv]

this just happened to me i only got the car back today too and have een told it is the altanator

[Cindywin]

My car stalled and ground to a halt yesterday. Now its in the garage. Hope nothing is serious.

[GrandadMonkey]

Dr Susan, what sort of use does your car get. With such a low mileage could it be that it gets lots of short runs without getting well warmed up. If so there could be a build up off unburnt fuel which the sensors are detecting. An "Italian tune-up" may be all it needs.

Ron

[lennyloo]

I have the same problem I am told that its the o2 Sensor, engine managment light has been on for several months with Anti Pollution Fault, it has been on the computer and only faults were o" sensor, I am having this repalced next month with hope the engine managment light goes off.

[Capncol]

Hi Lennyloo and welcome.
Let us know how you get on.

[Ladybrum]

I also appear to have the same problem (52 Plate 2.0L Se 65,000 mileage)
Cat Converter Warning and Anti Pollution Fault keeps flashing up on display with the dianogstics warning light flashing. Pug was really chuggy almost to the point of cutting out and not a smooth drive at all just before the warnings came on. I've noticed also that the inside of my chrome exhaust has turned black.
It's going into the garage for diagnostics so we'll see what happens. (Cam belt has just recently been changed together with seals).
Any further advice would be sooooo helpful. I do have a 3 month warranty cover (4 star PLan) which was included when I bought the car but no idea whether this would be covered as I don't yet know what the problem is.

[Capncol]

I also appear to have the same problem (52 Plate 2.0L Se 65,000 mileage)
Cat Converter Warning and Anti Pollution Fault keeps flashing up on display with the dianogstics warning light flashing. Pug was really chuggy almost to the point of cutting out and not a smooth drive at all just before the warnings came on. I've noticed also that the inside of my chrome exhaust has turned black.
It's going into the garage for diagnostics so we'll see what happens. (Cam belt has just recently been changed together with seals).
Any further advice would be sooooo helpful. I do have a 3 month warranty cover (4 star PLan) which was included when I bought the car but no idea whether this would be covered as I don't yet know what the problem is.

If your MIL light has been on, then one or more fault code will have been stored.
Are you saying it's been like this since cambelt change, or happened a little while later?
Is it happening all the time or intermittantly?

[Ladybrum]

Hi Cap,
The diagnostic light stays on - cam belt was changed a few days after I had the car, this problem has only just happened. Had diagnostics done today where it showed that the 2nd Lambda (think that's how you say & spell it) Sensor had gone and also the Cat Converter. Am also having to have a new back box fitted as the original has been welded together (for some unknown reason!). As for the warranty plan cover, guess what, none of this is covered by it! The warning messages appeared yesterday and were still showing last night and this morning, despite turning engine on and off.
So, more money to be spent on my Pug, hoping nothing else goes wrong...

[Capncol]

Just change the 2nd O2 (lambda) sensor first before changing Cat. 9 times out of 10, it will do the trick.
A non Peugeot universal one isn't that dear. You just need to know if it is heated or non heated (3 or 4 wire) I can't remember which offhand. It's easy to change for someone with basic mechanical knowledge, unscrew old sensor, change it and crimp some wires. I can post a guide for you if you have someone able to have a go.
Worst case senario is having to change cat if fault still there.
If the rear box isn't blowing, then don't worry about that either until it does blow.

[Ladybrum]

Hi Cap,
Back box was blowing and even with the 02 sensor being changed the fault was still there so hence had to have the cat changed as well.
So, all in all - downpipe/cat, 2nd lambda sensor, rear box section, clamps, dianostics, lights reset on dash and labour charge - what else can go wrong - no, don't tell me!
Just a quick question, the automatic headlights setting, can this be changed at all by myself, only the headlights came on this evening and it was still quite light. If so, where and how?
Thanks Cap

[shadow]

Hi Cap,
Back box was blowing and even with the 02 sensor being changed the fault was still there so hence had to have the cat changed as well.
So, all in all - downpipe/cat, 2nd lambda sensor, rear box section, clamps, dianostics, lights reset on dash and labour charge - what else can go wrong - no, don't tell me!
Just a quick question, the automatic headlights setting, can this be changed at all by myself, only the headlights came on this evening and it was still quite light. If so, where and how?
Thanks Cap

was the fault cleared off the ECU when the lambda sensor was replaced ? i know it is a bit late now but for others if the exhaust is blowing it will throw up the anti-pollution fault/cat converter/o2 sensor and anything else to do with emissions i would have started with the back box. garages want the work so wont tell you this unless it's mates rates

[suegriff]

my exhaust blows but never thrown any faults up

[suegriff]

my exhaust blows but never thrown any faults up

I spoke too soon engine light came on yesterday