Better MPG for just about no money. Options

[TannerEsser]

Take a ristor that has about a .2k ohm resistance and plug it in to the plug that goes to the IAT sensor. the car will use less fuel. and still read a temperature that is in spec and wont throw a code. it worked for me. but since it leans out the fuel dont drive very hard it could be hard on the engine.

This post has been edited by TannerEsser: May 25, 2012 - 9:45 AM

[azian_advanced]

you actually want to reduce the resistance (not increase it) to fool the ecu that it's getting hotter air and make it run leaner.




running leaner will just reduce your power output but unless you change the way you drive (ie. driver demand on engine power) you're actually gonna use more fuel. it can also cause the engine to run hotter and possibly scorch the internals.

there are much better and safer ways than this to improve the fuel economy, imo.

[TannerEsser]

you actually want to reduce the resistance (not increase it) to fool the ecu that it's getting hotter air and make it run leaner.




running leaner will just reduce your power output but unless you change the way you drive (ie. driver demand on engine power) you're actually gonna use more fuel. it can also cause the engine to run hotter and possibly scorch the internals.

there are much better and safer ways than this to improve the fuel economy, imo.

well .2k ohms is reduced. thats what i said. but if you drive like a normal person you will get better mpg. but like i said there is specifications that need to be taken into acount. but after i put the POT in i hooked up my scan tool everything remained normal, no irregular readings from the O2 sensors the engine has been running fine. ive just noticed i dont have to fill up as much and less fuel gets me further. so ya i dont know where you guys heard the stuff you heard but this is probably the easiest cheepest, and still safe way to get better mpg. a more drastic change and way more harmful way of changing how much fuel goes to the engine is doing the same thing as i did to the IATsensor to the engine coolant temp sensor. doing it that way is pretty bad.


ALSO i never said have more resistance to have less fuel. and nice chart. i posted the same one in a link in the post before you.

This post has been edited by TannerEsser: May 25, 2012 - 11:12 AM