I put a multimeter on the O2 sensor to monitor cycling (closed loop) and also had a vac gauge hooked up. Found that with what I was testing that the engine was usually in closed loop when the vac reading was above 10 to 12 " hg. Some times needed to shift down a gear to maintain the 10-12" hg.
Either a vac gauge or an extra spring on the throttle setup to make the pedal stiffer when you push past the place where you hold it for cruise. Both remind you to lighten up.
Leading the perpetually ignorant and uninformed into the light of scientific knowledge. Did I really say that?
a new policy....I intend to ignore the nescient...a waste of time and energy.
Since vacumm occurs most when you are off the go pedal...keeping it in the "red zone" (vacumm) will mean that you are burning less fuel. It is kinda a guage of your throttle position...
2006 Jeep Liberty CRD...Founder of L.O.S.T.
OME 2.25" Lift w/ Toyo Open Country HTs 235/75/16s
ASFIR Alum Eng/Tranny/Transfercase/Fuel Skids
2002 Air Box Mod...Air Tabs (5) on Roof...(3)each behind rear windows
Partial Grill Block with Custom Air Scoop and 3" Open Catback Exhaust
Lambretta UNO150cc 4 Stroke Scooter