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84LX89GT · 10-24-2002, 11:00 PM

You could probably splice into the oxygen sensor and get a reading but you'd have to get a voltmeter that reads 0 to 5 volts, which is basically what "air/fuel" ratio gauges are.

I believe that the more oxygen there is in the exhaust the higher the voltage the oxygen sensor generates and vise versa.

10-24-2002, 11:00 PM	#4
84LX89GT Mustangs Join Date: Jul 2000 Posts: 1,938	You could probably splice into the oxygen sensor and get a reading but you'd have to get a voltmeter that reads 0 to 5 volts, which is basically what "air/fuel" ratio gauges are. I believe that the more oxygen there is in the exhaust the higher the voltage the oxygen sensor generates and vise versa. __________________ 2005 Suzuki Hayabusa GSX1300-R 1980 Ford Thunderbird - 255 V8 ported heads, 5.0L ported stock headers, O.R. H-pipe and Flowmaster 2-chambers, dual roller timing chain hi-po Mack Truck hood emblem 1985 Mustang GT 5.0L T5, F-303, GT40p, headers, off-road h, flowmasters, MSD stuff, etc. Sold 02/06/04 1989 Mustang GT ET: 13.304@102.29 mph (5-24-03) Sold - 1998 Mustang Cobra coupe, 1/4 mile - street tires: 13.843@103.41 (bone stock)