Hey there guys.
So my car seems to be lacking any boost or push above 3,200RPM when doing a full throttle pull in third gear. It struggles to redline. I can hold it there in third with my foot to the floor down the dual carriage way and it just cannot do it. Lower down it comes on early and strong, but then it just runs out of breath entirely. You can feel it hit this wall, and the turbo quitens a little.
I saw my Lambda sensor was 1.06 fully warmed up when idle, with a 78 Air/fuel value(?). I read that it should be at least half that for a normal sensor, so I bit the bullet and changed that. It now read 0.97 idle when fully warmed up, with no improvement at all in the top end - that's going back for a refund. MAF reads 17g/sec at idle and responds immediately to my input. At idle both MAP requested and actual are the same. I can try use the Torque app to log MAP values under load.
No warning lights, no DTCs, no limp mode, and the top air intake was fully cleaned out yesterday. The lower intake was basically spotless, so no blockage there to worry about either. In another thread I made about an EGT sensor being stuck at 222*c and having not done a regen in almost 50k, plus having soot in the muffler, it's possibly had the DPF gutted and then mapped out, so I don't imagine it's blocked. The small cat before the DPF looked free flowing when I took the lambda sensor out. The turbo actuator seems to be able to move the full distance no problem also.
I'm at a bit of a loss now if i'm honest. Any thoughts?
Thanks in advance
So my car seems to be lacking any boost or push above 3,200RPM when doing a full throttle pull in third gear. It struggles to redline. I can hold it there in third with my foot to the floor down the dual carriage way and it just cannot do it. Lower down it comes on early and strong, but then it just runs out of breath entirely. You can feel it hit this wall, and the turbo quitens a little.
I saw my Lambda sensor was 1.06 fully warmed up when idle, with a 78 Air/fuel value(?). I read that it should be at least half that for a normal sensor, so I bit the bullet and changed that. It now read 0.97 idle when fully warmed up, with no improvement at all in the top end - that's going back for a refund. MAF reads 17g/sec at idle and responds immediately to my input. At idle both MAP requested and actual are the same. I can try use the Torque app to log MAP values under load.
No warning lights, no DTCs, no limp mode, and the top air intake was fully cleaned out yesterday. The lower intake was basically spotless, so no blockage there to worry about either. In another thread I made about an EGT sensor being stuck at 222*c and having not done a regen in almost 50k, plus having soot in the muffler, it's possibly had the DPF gutted and then mapped out, so I don't imagine it's blocked. The small cat before the DPF looked free flowing when I took the lambda sensor out. The turbo actuator seems to be able to move the full distance no problem also.
I'm at a bit of a loss now if i'm honest. Any thoughts?
Thanks in advance