O2 Sensor - Bank 1 Upstream
1972 Dodge Challenger · 383ci V8
Sensor Type
not-applicable
Waveform Type
not-applicable
Location
Not equipped - 1972 Dodge Challenger 383ci predates oxygen sensor technology and catalytic converter requirements
Pins
Unknown
Timebase
N/A
Voltage Scale
N/A
Trigger
N/A
Wiring
Not applicable - oxygen sensors not introduced until mid-1970s emission controls
Expected Voltage Range
At Idle
0V to 0V
At Higher RPM
0V to 0V
Expected Pattern
Not applicable - vehicle has no closed-loop fuel control
Known-Good Waveform
The 1972 Challenger has no oxygen sensors. This pre-catalytic converter vehicle uses a carburetor with mechanical fuel metering and no electronic feedback control. Air-fuel ratio is adjusted manually via carburetor jets and mixture screws.
Common Failure Patterns
Not applicable
Cause: Sensor does not exist on this vehicle
Diagnostic Tips
For air-fuel mixture diagnosis, use exhaust gas analyzer or inspect spark plugs for color (tan/light brown is optimal). Adjust carburetor mixture screws for best idle quality and proper exhaust emissions per 1972 specifications.
Related Diagnostic Trouble Codes
P0130P0131P0132P0133P0134
Always confirm waveform data with your vehicle's OEM service manual before diagnosing.
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