anti pollution fault on 2.2 petrol

[p607owner]

hi, had an eventful couple of days with my 03 2.2 manual petrol 607. not a problem with it, increased the tyre pressures to 34psi and the next day stated to notice a vibration on front right wheel and light squealing noise, comes and goes after car has been running a few minutes, wasnt sure if might be road surface noise/tyre pressure or wheel bearing as was changing and getting louder when turned, though noise dissapears when brake so thought might be pads which still have some mm's left on them. Decided to take car out and make some left and right turns to see if could tell if left or right if was a wheel bearing, stopped to get petrol, within a few seconds of leaving garage, car started vibrating and non polution warning appeared and asp/esp warning. Wondering if might be water in fuel, i think the esp warning is because the engine has gone into limp mode & esp warning is shown also. if anyone has any ideas about either the wheel noise or what to do about the non polution error ( i dont think the petrol has partiulate filter or additive?), any advice would be appreciated. havent had codes read yet, many thanks.

[john_h]

esp fault sounds like the sensors need a bit of a clean, when you press the brake does it sound like grinding and the abs kicking in, the reason i ask is because i beleive it is the same sensors and they gather crap on them and mess up the air gap (should be 2mm) and cause this type of fault.

as for the anti-pollution fault, this can mean a number of things, but you wont know for definate until you get the codes read by planet.

hope this helps

[p607owner]

many thanks John, the noise actually dissapears when i apply the breaks but is itermittant when i am driving a long. yes i think you are right, i'm going to have to get the codes from a garage. Might look at the contacts and sensors in the exhaust first just in case something obvious. that the error message and limp mode occurred seconds after filling up does make me think it might be dodgy fuel-i did take a sample afterwards. There were thousands of cases of i think lambda sensors being destroyed with silicon in fuel in 2007, but i just found out that it can be quite common that stations can get water in their tanks and can cause problems with engine immediately after fuelling.

[chopper1192]

Lambda's weren't being 'destroyed' by silicon contaminated fuel. They were being contaminated. A lot of dealers made a killing out of that one.

I got caught out and sure enough the EML came up on my Mi16. 2 doses of redex cured it.

Likely to be lambda, EGR, spark splugs, coils packs, or fuel tank evaporative system on your 2.2. There isn't anything else related to the emcon system on there.

[p607owner]

many thanks Chopper1192, do you think it is worth me putting redex in before paying for a diagnostics check at a garage? Do you think this could help clean any injector related problems out if it was a fuel related issue?

[p607owner]

what a morning! thought this was becoming like something out of mr bean!, left the battery off overnight and manually locked the car doors, connected it this morning and left it running on the drive to see if error would clear, unfortunately the drivers door closed and the central locking somehow reset and locked all the doors and the boot with the engine running and the windows closed, and no spare key. Phoned the peugeot garage and they said to break a window, thankfully the drivers door was on the safety catch, managed to lever a piece of wire just, into the car and press the electric window buttons. Went to an esso station and filled up with more fuel, when i left the juddering has gone, restarted the car three times and the errors have dissapeared completely from the dash, looks like it may have been seriously dodgy fuel, just got to sort out the front wheel noise, thinking it might be pads getting close. Will check rotating the wheel incase bearing. Thanks again for both of your suggestions.

[Scotcruz]

alot of the times it is the ECU registering faults and causing problems..

glad you got into the car, never leave the car running without the windows down..

I would check the discs and pads.. couldnt think of being anything else..

[p607owner]

thanks Scotcruz, noticed there is binding of front right wheel, brakes arent fully releasing on it, hitting with a hammer releases them. Pads look good, but the last mechanic has tightened the wheel nuts so tightly was an effort to get them off, concerned might ring the locking one off so will leave for the garage to see if a caliper is sticking or something else they might find. Is odd but the vibration noise just appears after driving for a few miles at average speeds. Only in last 2 days. There is a loose plastic section in front of the tyre where one of the small underbody plastic parts is missing on the right side but dont think this is causing the problem, might try securing it. Yes, in hindsight i will leave the window open if ever do anything like that again! I realised afterwards that all of the windows are laminated double thickness pains, would have been an effort trying to get through them. Good the door was on safety catch, if not, would have had to drill a hole in the sunroof and try to get a wire in to the switches that way. Thanks agains for your advice.

[Scotcruz]

Originally Posted by p607owner

thanks Scotcruz, noticed there is binding of front right wheel, brakes arent fully releasing on it, hitting with a hammer releases them. Pads look good, but the last mechanic has tightened the wheel nuts so tightly was an effort to get them off, concerned might ring the locking one off so will leave for the garage to see if a caliper is sticking or something else they might find. Is odd but the vibration noise just appears after driving for a few miles at average speeds. Only in last 2 days. There is a loose plastic section in front of the tyre where one of the small underbody plastic parts is missing on the right side but dont think this is causing the problem, might try securing it. Yes, in hindsight i will leave the window open if ever do anything like that again! I realised afterwards that all of the windows are laminated double thickness pains, would have been an effort trying to get through them. Good the door was on safety catch, if not, would have had to drill a hole in the sunroof and try to get a wire in to the switches that way. Thanks agains for your advice.

if its sticking then you can easily do it yourself (depends if you are comfortable doing the stuff) front one are piss easy.. wheel off and two nuts which take the caliper off.. however its very unusual for the front ones to sieze, seen rear ones do due to heat generated from binding and causing the seals to go hard...

let us know if you need any help...

[p607owner]

Thanks again for all your suggestions. In case helpful if anyone has similar problem, the brake binding issue appears to have gone. Took front brake caliper off (thanks scotcruz for info) and cleaned and greased everything, also moved piston back and forward well beyond normal movements, bled some liquid and refilled header, and binding brake problem appears gone. The other prob i had was anti pollution warning, had thought it was dodgy petrol, but think now just a coincidence as has reappeared and got worse. Got a diagnostic tool from ebay which gave error p0204 which appears to be 4th cylinder injection system. Looked at the spark plug and is white, i think this may indicate lack of fuel, swapped it round with another, and took injector out and swapped with another. Still same code of p0204, have read it may be the wiring (or if not the computer - hopefully not). Have tried wiggling the wire to injector 4 but no benefit. The car is now only running on 3 cylinders, pretty much all the time. If anyone has any advice on how best to check the wire in the loom for the 4th cylinder which is easier than removing from engine bay, and tracing and testing wires, as is several feet long, and also whether the 3 cylinder running is only because of the issue with the electrical supply to feed the fuel injector or whether the car is running on 3 cylinders because limp mode itself does this in some way, this would be greatly appreciated, or if someone thinks i'm missing the problem, also i was told there may be a recall valid for anti pollution error messages, thanks again.