I posted earlier that I had trouble with connecting my new Air/Fuel gauge to my O2 sensor wire; first I couldn't pinpoint it, but alas, I was right and I had it connected properly. However, the gauge isn't operating as it should. Now, could this be due to a bad O2 sensor? I've also noticed I get crummy MPG lately (past 3 months)...like 4 gallons less. Maybe it's just me, or could this be it?

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1992 Camaro RS (Auto)
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Performance mods
NOS (100 HP shot)
Dynomax cat-back exhaust
Hedman headers
K & N open element/ X-Stream lid
MSD 6A ignition
Under drive pulleys
LT1 camshaft
Coming soon:
1.6 roller rockers
Torquer heads
Edelbrock TBI/intake

Audio
Sony Xplod CDX-M610 head unit
Pioneer 2-way 4x6 front speakers
Pioneer 3-way 6x9 rear speakers
12 inch Pioneer VCCS PRO subwoofer
QLogic sealed box
Kicker ZR360 amplifier
Lightning Audio 1 farad capacitor
Other
Macewen White Faced Gauges/Shift overlay
A-pillar gauges (Phantom oil pressure, Air/Fuel)
180* thermostat
Window Tint
Under car neons (green)

 

How is the gauge not operating properly? What is it or is not doing?

Properly operating O2 sensors switch rapidly between RICH and LEAN. They should be fixed RICH at WOT and fixed LEAN during Decel.

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