Re: d40 remap dpf delete and diesel exhaust injection delete

The dpf scans the 2 sensors pre dpf and post dpf, what it wants to see is low pressure pre dpf and post. If it reads high presssure pre dpf and low pressure post it presumes the dpf is becoming clogged and will enter into regen mode. That is my under standing, what im trying to acheive with the remap is, power, low down torque and fuel economy and i feel to be more economic the exhaust injection would need to be deleted as part of the remap!

 

Re: d40 remap dpf delete and diesel exhaust injection delete

You can get the dpf removed and the ecu remapped to accept that (and gain bhp) at any good tuning shop.....

 

Re: d40 remap dpf delete and diesel exhaust injection delete

The trouble is i want the exhaust fuel injection stopped, has anyone had this done?

 

Re: d40 remap dpf delete and diesel exhaust injection delete

Fuel is only burnt during a regeneration cycle. So removing the cycle with a remap will stop this. Does mean you need to physically remove the dpf, else it will completely clog causing damage.

 

Re: d40 remap dpf delete and diesel exhaust injection delete

If you just remove dpf without removing the coding there is a chance it may throw up a fault code and go into limp

 

Re: d40 remap dpf delete and diesel exhaust injection delete

So nissan mustve built in a presure range for ecu to look for,prety sure over on http://www.navara.asia someones just had pipe made with holes for sensors and it works

You could be right, not sure about the nav, will need to look into it more. I know on the alfa diesels if you just knock the internals or fit a bypass pipe it throws up a fault code as it's looking for pressure differentials within a certain range..

 

Re: d40 remap dpf delete and diesel exhaust injection delete

you can't just gut out the dpf like you can with the cat, It needs to go to a remapping center where they make a pipe to replace the dpf, then delete the whole regen info out of the ecu so the ecu thinks it never had a dpf as if it where a manual euro 4 etc.

They can also give you an economy map included for extra mpg's