My Camaro has 85,000 miles on it...I don't think the O2 sensor was ever changed...lately I've been noticing my Air/Fuel gauge has been acting odd, with the sensor sweeping over the entire range far too much; what I mean is it's telling me my mixture is lean and stoic at the same time, or stoic and rich at the same time; it's not singled out...(Autometer gauge)...I know it's not my wiring job, but I fear the O2 sensor...could that be it? I guess I was going to replace it anyways, but this just made it more noticeable...I dunno about fuel consumption, it seems about the same...I think... :P

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1992 Camaro RS (Auto) 5.0L TBI
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Performance mods
NOS (125 HP shot)
Dynomax cat-back exhaust
Hedman headers
K & N open element/ X-Stream lid
MSD 6A ignition
LT1 camshaft
MSD 8.5mm plug wires
Soon to be installed:
Edelbrock intake manifold
3.42 rear axle
B & M 2400 RPM stall torque converter
Transgo shift kit
Torquer heads

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

 

a heated o2 senser is better for the a/f gauge. the single wire senser is basically lean/rich and just goes back and forth between the two. it should only cost about 20 dollars for a new one so replacing yours wouldn't be too costly, a headed one is around 50 dollars.

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ICON Motorsports
1st & 3rd
MM Black Diamond 538 F&AM

 

Thanks, man! I think I'll get a Bosch heated O2 sensor