Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - Any interest in developing an open source fuel economy gauge/computer?

diesel_john · 04-03-2008, 02:41 PM

Just to try and help any way i can.

The VSS signal on '90's Ford is 132 Hz @ 60 MPH
voltage 1.5 to 5.5
resistance 190 to 240 ohms

the injector fires every 2 engine revolutions, grounded by the EEC(Ford)
so injector pulse X 2 is rev's

the injector pulse varies from idle @ 3ms.(car)
to 17ms.(truck) @ 55MPH
resistance 11 to 18 ohms

does not include throttle body injection,
peak hold injection,or
early flex fuel with extra cold start injector.

04-03-2008, 02:41 PM	#135 (permalink)
diesel_john MP$ Join Date: Jan 2008 Location: SW Ohio Posts: 595 Thanks: 5 Thanked 19 Times in 14 Posts	Just to try and help any way i can. The VSS signal on '90's Ford is 132 Hz @ 60 MPH voltage 1.5 to 5.5 resistance 190 to 240 ohms the injector fires every 2 engine revolutions, grounded by the EEC(Ford) so injector pulse X 2 is rev's the injector pulse varies from idle @ 3ms.(car) to 17ms.(truck) @ 55MPH resistance 11 to 18 ohms does not include throttle body injection, peak hold injection,or early flex fuel with extra cold start injector. Last edited by diesel_john; 04-07-2008 at 12:21 AM..