Peugeot 406 Flat spot

[Brian Tatenda]

Hie guys

I have a 2002 manual Peugeot 406 EW engine and now i have used it to 335000km. I have tried to have it serviced religiously. 

Challenge I am having with it is that its there is now power loss when i am travelling in in hilly areas where i leave. i now find it difficult to go up some and end up going down to 2nd gear where i used to go up in 3rd or 4th (at times). when i rev it, it feels like there is flat spot as in it takes a a second or 2 to rev and its taking too long to rev. its also idling at very low revs below 1000rpm. when i do a change down, it struggles to go and jerks a bit for the first second or 2 when the gear is engaged the picks up but still doesnt have that much power. on take off, on some occassions, it moves really slow and picks up speed after a second or 2 which I am assuming is that flat spot also. when u are on a highway or normal driving it still drives well. 

also i have an engine check light on and the error Anti Pollution Fault displays. this started after i assisted someone who needed a jump start and it has not gone away since. 

[Twin Turbo]

Hi and welcome to AL,..

 

The check engine light comes to do the same,..change the air filter, check the ecu with a scanner,.

Clear the fault codes and do the required maintenance,..

Cheers,

TT.

[vag2]

is it a turbo?  Boost/Manifold pressure Sensor or MAF sensor errors?

[Crosswind]

The 'Anti pollution fault' is the most common error message in Peugeots. 

However, this sounds like a a faulty ignition coil or a plug wire. Did you get the ignition system checked? Has the petrol consumption increased or decreased?

[Brian Tatenda]

On 8/28/2018 at 8:47 AM, Crosswind said:

The 'Anti pollution fault' is the most common error message in Peugeots. 

However, this sounds like a a faulty ignition coil or a plug wire. Did you get the ignition system checked? Has the petrol consumption increased or decreased?

the petrol consumption at one time decreased to 6.9/100 and now it has been on the rise and now its at 7.9/100 within the last 3 months. I havent had the ignition system checked but will do so.

[Brian Tatenda]

On 8/27/2018 at 1:43 PM, Twin Turbo said:

Hi and welcome to AL,..

 

The check engine light comes to do the same,..change the air filter, check the ecu with a scanner,.

Clear the fault codes and do the required maintenance,..

Cheers,

TT.

air filter was changed. but will try find a garage with an ecu scanner. where i stay they are rare to find. 

[TheFlyingFox]

Anti pollution fault in these Peugeot’s are common most related to ignition coils as crosswind said. However you might want to check the oxygen sensor. Some models might have two , upstream (top of the manifold ) and one downstream ( after the cat ). Don’t know if the 406 came with a electric throttle unit , if so might want to check that as well.