hi
have just bought a 423.000km 110hp JTD marea weekend.
and it sounds healthy and everything after i changed the turbo..
when i got it the turbo was toast so i changed that and it worked. but i noticed that i had like a drop in performance at around 2700rpm.. (i dont know if its low on power all the way i have never driven one before) but it drops at around 2700 and it pulls i think normal after 3000rpm.
i checked with fiat ecu scan.
and sure enough it has a 0.3bars of boost drop at 2700rpm it spikes at 1,1bars of boost and is swaying like a wave at full throtle...
then i checked my MAF sensor .. normal temps.. 21C
But then i logged the:
air quantity
air quantity commanded
and the air quantity it asked for was around 1800 and the quantity it got(messured) was max 1200..
tryed to clean it.. no difference.. changed the airfilter no difference..
looked up commanded boost pressure vs boost pressure measured.. it was waving but some times when it was boosting the 1,1bars it was like (1800/1200)
it does have some kind of boost problem low down at low acc. in 2 gear it like flutters...
have heard about something about the solornoid valve controlling the pressure to the acuvator.
oh and the map says 1030 so i dont think its that.. cleaned that to..
have just bought a 423.000km 110hp JTD marea weekend.
and it sounds healthy and everything after i changed the turbo..
when i got it the turbo was toast so i changed that and it worked. but i noticed that i had like a drop in performance at around 2700rpm.. (i dont know if its low on power all the way i have never driven one before) but it drops at around 2700 and it pulls i think normal after 3000rpm.
i checked with fiat ecu scan.
and sure enough it has a 0.3bars of boost drop at 2700rpm it spikes at 1,1bars of boost and is swaying like a wave at full throtle...
then i checked my MAF sensor .. normal temps.. 21C
But then i logged the:
air quantity
air quantity commanded
and the air quantity it asked for was around 1800 and the quantity it got(messured) was max 1200..
tryed to clean it.. no difference.. changed the airfilter no difference..
looked up commanded boost pressure vs boost pressure measured.. it was waving but some times when it was boosting the 1,1bars it was like (1800/1200)
it does have some kind of boost problem low down at low acc. in 2 gear it like flutters...
have heard about something about the solornoid valve controlling the pressure to the acuvator.
oh and the map says 1030 so i dont think its that.. cleaned that to..