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Old 08-05-2005, 10:50 PM   #1 (permalink)
 
Registered: Aug 2005
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Question help on installing a air/fuel gauge

man I'm a little confused. I got a autometer air/fuel gauge, it has three wires 1. for the power 2. for ground and 3. to be connected to the signal wire on the oxygen sensor. Where can I find that #3 WIRE. WHAT NUMBER IS IT ON THE ECU. CAN ANYBODY SEND ME A PICTURE OR SOMETHING?
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Old 08-06-2005, 02:31 AM   #2 (permalink)
 
Registered: Jul 2005
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Quote:
Originally Posted by EVO CAN EVO
man I'm a little confused. I got a autometer air/fuel gauge, it has three wires 1. for the power 2. for ground and 3. to be connected to the signal wire on the oxygen sensor. Where can I find that #3 WIRE. WHAT NUMBER IS IT ON THE ECU. CAN ANYBODY SEND ME A PICTURE OR SOMETHING?
Pin number 76 on the ECU is the front o2 sensor.

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Old 08-07-2005, 04:28 PM   #3 (permalink)
 
Registered: Aug 2005
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hey thanks that helped out alot. I hooked the violet#3 wire to the #76 on the ecu,is that how you do it? After I installed all wires the gauge was flickering red on idle and when I was driving ,it would bounce from left to right, is that correct?
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Old 08-08-2005, 08:57 AM   #4 (permalink)
 
Registered: Jul 2005
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It should read lean and bounce around at idle, and will cycle back and forth around stoich when your cruising. The important part is that at wot it stays on the rich side. I'm not sure how rich the evo's run stock, but it's probably around 10.1 at wot.\

wot= wide open throttle, just in case.
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