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> Air Fuel Ratio Guage?, Which Wire is the o2 sensor from ECu
post Jun 1, 2003 - 12:15 AM
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D-No-One



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does anyone done installing an Air fuel ratio guage? im wondering does anyone know which wire from the ecu is the o2 sensor. i have a 94 toyota celica gt.
Thanks

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post Jun 1, 2003 - 9:50 PM
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6gencelica



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i hooked mine up to the exhaust manifold and it works fine. i have had it for two years w/o a problem. to see if you broke it, just take your power wire to the battery and your ground wire to the ground on your battery. if the led lights up, then it is fine. if it doesnt light up, it might be broke. i dont know to much about electronics, and theres probably a smarter (or more technical) way to do this, but that works for me. -Dan

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