caddymandean
Registered User
Hi all,
I have a 3.0tdi B7 s line quat the 204bhp. I bought it knowing it had some sort of turbo lag issue. So I got a deal
Turbo wasnt kicking in until about 2100rpm. Under that car was very sluggish and would sometime thow itself into limp mode. Mate of mine stuck the VCDS on it and found fault code J724 013128 Which all pointed towards the actuator unit.
When looking at the actuator we saw the clip at the top was broken. So i ordered a new one from TPS another mate borrowed his VAS tool from work and we fitted it and calibrated it correctly.Its 100% working fine.
Anyway this has not resolved the problem! This is where it gets interesting. If i disconnect the MAF it drives fine (maybe a little underpowered, but hardly noticable) turbo comes in nice and early and pulls well throughout the rev range.
So where to go next? Ive done some searching and im getting different opinions. Could this be a clogged EGR? What else is controlled/sensed by the MAF?
If its the EGR, I was, once running right going to get it remapped and the EGR mapped out. Rather than take hours taking it out to clean....looks like a pig of a job on the 3.0tdi! Can I still get it mapped with the MAF disconnected?
Anyone have any similar experiences to mine with anything further to suggest?
Thanks,
Dean.
I have a 3.0tdi B7 s line quat the 204bhp. I bought it knowing it had some sort of turbo lag issue. So I got a deal
Turbo wasnt kicking in until about 2100rpm. Under that car was very sluggish and would sometime thow itself into limp mode. Mate of mine stuck the VCDS on it and found fault code J724 013128 Which all pointed towards the actuator unit.
When looking at the actuator we saw the clip at the top was broken. So i ordered a new one from TPS another mate borrowed his VAS tool from work and we fitted it and calibrated it correctly.Its 100% working fine.
Anyway this has not resolved the problem! This is where it gets interesting. If i disconnect the MAF it drives fine (maybe a little underpowered, but hardly noticable) turbo comes in nice and early and pulls well throughout the rev range.
So where to go next? Ive done some searching and im getting different opinions. Could this be a clogged EGR? What else is controlled/sensed by the MAF?
If its the EGR, I was, once running right going to get it remapped and the EGR mapped out. Rather than take hours taking it out to clean....looks like a pig of a job on the 3.0tdi! Can I still get it mapped with the MAF disconnected?
Anyone have any similar experiences to mine with anything further to suggest?
Thanks,
Dean.