FAIL! ha ha
Navara 2010 2.5 diesel fuel consumption
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FAIL! ha ha
Alanj
Member
My 2011 D22 is averaging 10.6 l/100km with a Tunit Chip after 4 tank fills
Hi all,
I have a D40 Auto and just clocked 55000, all i have done is the EGR and i am getting 10.2l per 100.
Is it worth putting on a DPF delete pipe, is so do i have to put in the O2 extension like BH did or has chip it modified the pipes to fix the white smoke problem?
can some one give me a resonable answer on wht to do?
Simon.
I have a D40 Auto and just clocked 55000, all i have done is the EGR and i am getting 10.2l per 100.
Is it worth putting on a DPF delete pipe, is so do i have to put in the O2 extension like BH did or has chip it modified the pipes to fix the white smoke problem?
can some one give me a resonable answer on wht to do?
Simon.
Simon, the jury on the thing is still out.
There are three ways to stop the waste of fuel.
1) Re-write the ECU program. This is the most efficient, but at the next Nissan service they load the factory program back on and there goes the effort.
2) Utilising the information from the CAS (crank angle sensor) to determine where each piston is in its cycle, intercept the injector signals and discard (ignore) signals made during the exhaust stroke. This is hard to do, because most chip manufacturers don't actually intercept injector signals, it seems - they just fiddle with fuel rail pressures. They also don't (often) monitor the CAS info.
3) Have the chip send dummy signals to the ECU, misleading it into thinking that the O2 and pressure sensors in the DPF are functioning normally and are not in need of a regen cycle. Not all chips can do this, it will be a very model-specific thing for the chip so it's going to cost a lot more.
Personally, I am holding off on the DPF delete pipe until the white smoke issue is resolved. I don't know which path to take - I'm actually in favour of trying to get an OBD-interface-based ECU programming facility and adjust the program to exclude the exhaust-based injector openings. If I can do that myself, and provide basic, easy instructions on how others can do it, then it doesn't matter what the service guys to - my DPF can be removed and my fuel consumption will be reduced.
That's the theory I'm working on at the moment, anyway.
There are three ways to stop the waste of fuel.
1) Re-write the ECU program. This is the most efficient, but at the next Nissan service they load the factory program back on and there goes the effort.
2) Utilising the information from the CAS (crank angle sensor) to determine where each piston is in its cycle, intercept the injector signals and discard (ignore) signals made during the exhaust stroke. This is hard to do, because most chip manufacturers don't actually intercept injector signals, it seems - they just fiddle with fuel rail pressures. They also don't (often) monitor the CAS info.
3) Have the chip send dummy signals to the ECU, misleading it into thinking that the O2 and pressure sensors in the DPF are functioning normally and are not in need of a regen cycle. Not all chips can do this, it will be a very model-specific thing for the chip so it's going to cost a lot more.
Personally, I am holding off on the DPF delete pipe until the white smoke issue is resolved. I don't know which path to take - I'm actually in favour of trying to get an OBD-interface-based ECU programming facility and adjust the program to exclude the exhaust-based injector openings. If I can do that myself, and provide basic, easy instructions on how others can do it, then it doesn't matter what the service guys to - my DPF can be removed and my fuel consumption will be reduced.
That's the theory I'm working on at the moment, anyway.
Well Old Tony, i am just out at Anna BAy if you need help, please keep me posted.
Simon
Chip Tuning
Member
Well Old Tony, i am just out at Anna BAy if you need help, please keep me posted.
Simon
Hi Simon
we sell about 40 DPF Race pipes a month for these D40s. It saves the factory ECU from receiving a signal from the DPF to say it is blocked. This stops the factory ECU from doing a post burn injection cycle on this condition. The hard coded entry in the factory ECu is based on time/kms ... not pressure differential and this hard coded instruction is the one that no chip manufacturer can ever conquer as Old.Tony mentioned. This is only something that someone with access to the Nissan factory ECU codes can ever change and no one has ever done this to my knowledge
With a DPF the first "I'm blocking up" code is no longer sent and most customers get 1 to 2 litres saving / 100 km
Its not a lot but its pretty good
With the Chip you save a little more because we take advantage of this exhaust mod and REDUCE fuel from the fuel map on take off. This saves a bit of fuel too. Also with extra torque now available you don't have the transmission knocking down a gear or two when you go up hills and you don't have to wring the neck of your engine to get it to go ... both of these facts save fuel.
Hope this helps
Cheers
Thanks Robert,
A answer i can understand, I will try the DPF delete race pipe first and see how that goes, NO white smoke?????
Regards
D40 AUTO
Member
SimonD40, if you get one can you do a real road test on it to see what it is like
thanks mate
thanks mate
K
KraftyPg
Guest
There was an ECU on ebay a few months back for $60, buy it and swap till your heats content.
Westy I wouldn't do that. Speak with Robert / Justin first
I wouldn't try an auto's ECU in a manual or vice versa. Certainly the manual's ECU may not let you drive the vehicle at all, because it may not communicate with the auto gearbox's TCM.
Does anyone know when the autos started to come out with the DPF? I'm going to swap out the ecu and see what happens. I can't find anyone who will remap the system and nissan won't do it so its the only option left! Nissan told me that now all the new autos ST etc don't have a DPF and that was because they where having so many problems with them! wish i didn't get one of these!
K
KraftyPg
Guest
Early to mid 09 and they were phased out on most models by mid 2010 I believe from posted stated on here .
