tubby
Registered User
a4 2.0 tdi 170 bhp hi i need some advise. A few weeks ago after filling up with fuel the car started to run rough engine tone different sounds like back pressure coming through the air box,dpf light on car not smooth jerking in traffic when in first gear, then the glow plug light on then limp no power or revs over 2500,
to cut the story short removed the intake butterfly valve and the egr and cleaned out 1 inch in carbon the egr doesnt look that old and the old gasket i found done side of engine refited all good,but i still feel the car is down on power boost,every time you get in the car it drives different in relation to power,
thinking the dpf may be choked up as car done 145000 miles go down motorway as the book says came back no difference,parked up not used for 3 hrs misses goes out and i asked hows the car her reply it goes like my old impreza did,
so went out in it and blow my trumpet the car goes like a stink the best its ever driven since buying at christmas,the car drove like that for two days then i went out in it the other day as the misses drives it normally and its back down on power as like the top of this page, i suspect the dpf blocked as i can hold my hands over the two tail pipes when its being revved to 3000 rpm and theres no pressure at all,thers no codes in the ecm,could the egr cause this symptom ,when does the egr open and close? if its stuck open all the time,
or my next step will be to un bolt the dpf from turbo slightly to relief some pressure and drive to see if the car drives ok if it does the ill take the centre out ie the filter and get remapped to delete but i need to confirm its that,any one can help i woul apprecaite it thanks steve
to cut the story short removed the intake butterfly valve and the egr and cleaned out 1 inch in carbon the egr doesnt look that old and the old gasket i found done side of engine refited all good,but i still feel the car is down on power boost,every time you get in the car it drives different in relation to power,
thinking the dpf may be choked up as car done 145000 miles go down motorway as the book says came back no difference,parked up not used for 3 hrs misses goes out and i asked hows the car her reply it goes like my old impreza did,
so went out in it and blow my trumpet the car goes like a stink the best its ever driven since buying at christmas,the car drove like that for two days then i went out in it the other day as the misses drives it normally and its back down on power as like the top of this page, i suspect the dpf blocked as i can hold my hands over the two tail pipes when its being revved to 3000 rpm and theres no pressure at all,thers no codes in the ecm,could the egr cause this symptom ,when does the egr open and close? if its stuck open all the time,
or my next step will be to un bolt the dpf from turbo slightly to relief some pressure and drive to see if the car drives ok if it does the ill take the centre out ie the filter and get remapped to delete but i need to confirm its that,any one can help i woul apprecaite it thanks steve