HI just came onboard.....any way... ABOUT VREF

[fuelsaver2]

HI hopefullt this be ok to post my question here....any have any info about a device called ( VREF)? ... ITS SUPPOSED TO ALTER THE M. A. F. censor output to achieve better fuel millage. i have the EFIE devices already ... PS I CAN SUPPLY ADDITION INFORMATION IF REQUESTED thanks don

[Pinhead]

I don't know about the particular unit that you're talking about (got a link?), but there are numerous ways you can tell the ECU to run the engine leaner.

<-- Click

[SeaMonkey]

Good question.





There are several documents listed. Go down under Miscellaneous and select "Tuning for Mileage" for a very good overview.

[fuelsaver2]

[SeaMonkey]

[fuelsaver2]

[fuelsaver2]

[quote="fuelsaver2"][quote="fuelsaver2"]HI looked over the site you suggested thanks ...since i am not really sure just what to expect when a resistor is connected in parell with say the m a p censor or the t p s censor can i expect the same results.....i not too sure whats the idea..... HI am back now have expernised a strange situation ... with all thes mods... i am just wondering it possible to foul up the computer to such a degree it wont accept any leaner mods. what ever that condition is called ? see at first this car got something like 48 m p g....when i installed the efie.....however now it barley gets 36 m p g..... just wondering if any one has expernised that.........i have tried resetting the car computer stil the ame results any ideas...

[SeaMonkey]

[fuelsaver2]

HI .... ok i see then it might be ok according to the scanguage.....what i have done so far is gonna work... the M A F, MAP.IAT.TPS censor are showing lower reading. compaired to before changes were made.......but oh yes i,ll continue driving it....i have tried set each censor at the same resistance.....for a start ill get it right. assuming its possible.......plus lots research on this car censors.....so ok again i,ll drive it this way in a months time or before i should see some stable effiency results... thanks

[fuelsaver2]

[mrgalleria]

Aloha,
All I do is wrap the oxy. sensor with a heavy layer of aluminum foil, and add a manual MAP or MAF sensor adjuster. Info in my project folder. Cost- about $4 for the potentiameter (50k or 100k), resister- $.20 (10k- MAF, 33k- MAP), wire cover- heat shrink- $.50, wire- $1.00. Total- $6-$7.
Bill

[fuelsaver2]

[Looking In]

[fuelsaver2]

[fuelsaver2]