Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - AutoSpeed on running lean for fuel economy

Novaz_nz · 08-05-2008, 05:27 PM

I am attempting this on a mechanical injected diesel so I have full control.
It is possible to achieve the results Autospeed couldn't if you have an aftermarket ecu (Power FC, etc), to reduce the "global" injector value.
I used to run the injector values 15% low, and advance the timing 5° on my turbo S13 when cruising to events, and the economy was definitely improved.

I think you guys are already running lean if you have a WAI though? - which costs next to nothing vs $1000's for an ECU to tweak things.

08-05-2008, 05:27 PM	#2 (permalink)
Novaz_nz EcoModding Lurker Join Date: Jul 2008 Location: Auckland, New Zealand Posts: 34 Novaz_M35 - '02 Nissan Stagea 250 RX 90 day: 21.7 mpg (US) Thanks: 0 Thanked 0 Times in 0 Posts	I am attempting this on a mechanical injected diesel so I have full control. It is possible to achieve the results Autospeed couldn't if you have an aftermarket ecu (Power FC, etc), to reduce the "global" injector value. I used to run the injector values 15% low, and advance the timing 5° on my turbo S13 when cruising to events, and the economy was definitely improved. I think you guys are already running lean if you have a WAI though? - which costs next to nothing vs $1000's for an ECU to tweak things. __________________