T5 tuning

[Sunny43.5]

here you go Aussiet5 just remember you did not hear this from me Ha Ha http://www.tidytransporters.co.uk/pr...e-t5-dpf-pipe/

[aussiet5]

yes i have seen them before.
but the re-coding in the problem.

[h100vw]

That pipes isnt really any good as a delete pipe. I know that Custom-Code delete software needs all the sensors fitted in the pipe regardless.

I don't fancy your chances of finding a dyno tune and I don't think a non VW specialist tuner would fair any better than a European derived tune, written for the job.

Gavin

[Ivo]

That pipes isnt really any good as a delete pipe. I know that Custom-Code delete software needs all the sensors fitted in the pipe regardless.
Gavin

From what your saying the best option is to remover the DPF from the van, unscrew all the sensors. Smash the DPF internals out with a steel rod then put the sensors back in then fit the DPF back to the van?

[Ivo]

The research (UK forums) I did on DPF removal was be vary careful about who does the coding. Some have no clue and just turn off the dash light but the ECU still thinks the DPF is there but its not so your not getting full benefit of having the tune allow for the reduction in back pressure.

[Sunny43.5]

The research (UK forums) I did on DPF removal was be vary careful about who does the coding. Some have no clue and just turn off the dash light but the ECU still thinks the DPF is there but its not so your not getting full benefit of having the tune allow for the reduction in back pressure.

Okay Ivo so if the code for the dash light is easily done what else has to be done to change the ECU,s mind ??? with the DPF removed ie either new pipe as listed or the alternative method ?? your help is appreciated .H

[h100vw]

Cutting open the DPF stripping the innards and welding back up is a better solution. I don't write the software so I can comment on exactly what is done with the tune. I have seen a couple of failed delete tunes though and they pump out a heap of smoke when the regen kicks in.

Gavin

[Ivo]

Okay Ivo so if the code for the dash light is easily done what else has to be done to change the ECU,s mind ??? with the DPF removed ie either new pipe as listed or the alternative method ?? your help is appreciated .H

I'm no expert Sunny, but from memory: Back pressure is massively reduced for the entire rev range when the DPf is gone so the turbo boost needs readjusting and so does fuel supply. Hence the improvements in performance when its gone. Also as h100vw said the regen process needs to be turned off in the ECU so it does not dump extra fuel in trying to regen.