Massive over fueling and problems with immobiliser - clio 182 trophy

[Chris205]

A friend of mine who doesnt have access to the forum, has recently rebuilt his trophy engine after a valve failure.

Since then the car has been massively over fueling, leaving a black burnt fuel trail all the way up the back of the car, it also hunts around on idle and it isnt very smooth running at all. When cold it doesnt want to pull away either, but once warmed up it seems to be ok.

. It's now having problems firing up due to the immobiliser as well,. Could these two be linked or are they two seperate ?

He swears the timing is correct on it but if anyone else has had a similar experience please share

Cheers

 

[mr.pink87]

I'd check the oxygen sensor and look for air leaks. Sure it's immobiliser and not the tdc sensor playing up?

BTW: Are you collecting 1*2s?

 

[Dan519]

timing would be the first thing to have checked

 

[feno69]

Sorry to bump such an old thread but i am having the same problem on my 2005 182.
After a top engine rebuild due to valve spring failure i too have the same symptoms, since then the car has been massively over fueling (strong smell of petrol especially when engine is cold), wont tick over properly (it is like its choking itself / hunting). When cold it doesn't want to pull away either, but once warmed up it seems to be ok.
Had it plugged in for diagnosis and no faults found.
Any ideas would be greatly appreciated as i am at the end of my tether and sick of throwing money at this car.

 

[bloke]

Is timing right? If so then chances are its lambda fault.

 

[feno69]

Update as now fixed
Car went back to the garage twice as I wasn't satisfied with the way the was running after the rebuild.
After changing the plugs (twice) HT leads / Coil pack (twice) / Lambda sensor and timing checked (twice) with no success finally found the cause of ever increasing frustration.
Turned out to be the dephaser pulley, now runs sweet.

 

[bloke]

Turned out to be the dephaser pulley, now runs sweet.

eh? you mean timing was out?

 

[feno69]

The garage were getting a bit fed up me turning up daily telling them something was wrong (hey after parting with £750 they were not going to get me to just drive away and think oh well its sort of running) after the second time i dropped the car off i told them don't ring me until its done. After a lot of head scratching they replaced the depahser pulley and is now running sweet, they told me its part of the VVT? (i am not clued up on engines / parts) but tbh I am just happy my Clio is running as it should (massive smile on my face)

 

[bloke]

something smells a bit fishy??