Air/fuel ratio

[davy916]

I have an air/fuel ratio gauge in my car, but the guy that had the car before me instaled it. There is a red, black and a purple wire coming out the rear of the gauge. The purple wire isn't hooked up, where does it go????

[onelessissue]

it gose to the head lights for illmuination dimming and im going to refer you to the other post just for a education

« Re: new to the site offering help (onelessissue) 1:55 PM 4/6/2007

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one more thing about o2 sensors i forgot it add and somthing that bugs the hell out of me people that have crappy narow band air fuel gauges unless you just wanna look pretty and replace o2 sensors these things are CRAP! when you splice into you o2 to use them your changing the signal that your computer gets and you putting extra load on your sensor so it runs worse and ruins your sensor not to mention there useless they show you what the computer sees cross counts now unless your a math wiz and count the cross counts and compute them into lamba in your head in .054 milseconds they tell you nothing excet that senor is working right if you didn't have your gauge hooked up now if you want a a/f gauge save your money get a wide band with its own sensor that will tell you whats up and help you turn your car not destroy it a/f is the most over looked and most important ting to gettin your car running at your best your crappy 60$ gauge wont tell you anything sorry if i offened anyone but no one i have ever talked that has these gauges understood what they are seeing or doing to there car so just letting people know

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[davy916]

No offense, thank you for the info. I'm new to the tuner car and do not know much about them. I will simply remove the gauge and buy a better one to install later. Thanks again.

[onelessissue]

yea im here to help and you wouldn't beleave the # of people that have all these mods on there cars and just have a cheap airfuel gauge and don't want going on witht there motor and the fry it i am the a/f nazi i learned how to tune and dyno cars from some of the best in the world lingifelter racing and head of motec engineering, leitzinger racing just to name a few and any of these guys will tell you a/f is the most important thing you can do to your car because if its not right you car isn't running its best and if you don't have the right moitoring device how do you knwo what ti is you can blow the motor real quick my friend dwane wattson wrote a artical in hot rod mag. about a/f one of the best ive ever read check it out i think everone should read it