smokey 207 1.6 /110 hdi smoking on run down?

[powernut]

hi all bit of help needed on my 56 plate 1.6 16v hdi engine , ive only really noticed this today , an only happernds when im on run down(deaccel)
at any givern speed 20/40/60mph soon as i let off the accelerator it really smokes bad?
soon as i accelerate smoke instantly clears

ive givern my car a full service oil/oil filter/airfilter
car starts and idiols smooth , turbo boosts fine with no horrid noise or play in it?

[davidireland]

Seems you're covering all it could be eg, air, oil and fuel filters. Get a diagnostic check done and post up faults here.

[powernut]

Originally Posted by davidireland

Seems you're covering all it could be eg, air, oil and fuel filters. Get a diagnostic check done and post up faults here.

as states these parts have been changed , ive plugged a f/reader in which isnt coming back with any nasty codes??

im woundering if a faulty egr valve wul cause the smoke on run down?

[powernut]

dose anyone on here any replies to my therds??? i assumed this forium would be ideal for help/advise and decent replies ,
smoking fixed was my egr valve , replaced no smoke

[bettyswollocks]

Could be regens if it has a FAP , but as told you need codes , any fault reader will not do , it has to be a lexia3 diagnostics.

(please no sarcasm, you are the one looking for help,yes?)

[powernut]

Originally Posted by bettyswollocks

Could be regens if it has a FAP , but as told you need codes , any fault reader will not do , it has to be a lexia3 diagnostics.

(please no sarcasm, you are the one looking for help,yes?)

ive done a dpf delete from the ecu and removed from exhaust also blanked egr valve off as well,theres no faults showing tbh , but soon as i turn igition off and restart problem is fine , for a while until it returns either from setting off harish from standstill or intermitantly cruiseing on the moterway , (the engine suddernly intermitantly holds back then clears and drives normal again?

[philkerman]

You mentioned your EGR was causing smoke, and sorting that sorted the smoke. But your latest reply suggests it's still smoking?

What colour is it?

[powernut]

Originally Posted by philkerman

You mentioned your EGR was causing smoke, and sorting that sorted the smoke. But your latest reply suggests it's still smoking?

What colour is it?

yearh . light blue colour , its like the engines burning oil oil yet ,it dose lose or burn oil its not white defo blue , i thought possibly injector ,yet engine sounds very nice ,and turbo whistles alot on setting off but im sure this is normal ,evern thow i have fitted another with no ecess play,like i say i only get this werid smoke when the engine is pushed hard via rpm from set of from a juction/turn corners very quickly /or on moterway intermitanty, if i dont stop the engine and reset the igition it will smoke all day long on run down (with accel pedal off) chuffing strange .be nice if i had fault codes

[philkerman]

I had this issue right up until I rebuilt the turbo, I didn't have radial play, I only had axial play, and only very slight but it was enough under run down for the shaft to shift, allowing it to ingress oil, albeit a a very slight amount.

Check for axial play, and report back.

Phil

[powernut]

Originally Posted by philkerman

I had this issue right up until I rebuilt the turbo, I didn't have radial play, I only had axial play, and only very slight but it was enough under run down for the shaft to shift, allowing it to ingress oil, albeit a a very slight amount.

Check for axial play, and report back.

Phil

hi has to be electrical issiuse breaking down ,as ive explained in the therd ,
regards turbo been replaced theres no eccessive play and its dry in the intake and exhaust ,as usely these are bad for oil been sucked into the breather into the intake , mine is dry , im going to fit a tempory boost gauge as im 98percent its very down on power , do u know what boost and fuel pressure i should be seeing?