O2 Sensor - Bank 1 Upstream
1972 Dodge Challenger · 318ci V8
Sensor Type
not-equipped
Waveform Type
not-applicable
Location
Not applicable - 1972 Dodge Challenger predates oxygen sensor implementation
Pins
Unknown
Timebase
N/A
Voltage Scale
N/A
Trigger
N/A
Wiring
Not applicable
Expected Voltage Range
At Idle
0V to 0V
At Higher RPM
0V to 0V
Expected Pattern
Not applicable - no oxygen sensors on pre-emissions control carbureted engine
Known-Good Waveform
The 1972 Dodge Challenger 318ci was not equipped with oxygen sensors. This vehicle predates closed-loop fuel control systems and catalytic converters. Air-fuel mixture is controlled mechanically through carburetor jetting, metering rods, and power valve systems.
Common Failure Patterns
Not applicable
Cause: Sensor not present on this vehicle
Diagnostic Tips
For air-fuel mixture diagnostics, use exhaust gas analyzer, read spark plugs for mixture condition, check carburetor float level, inspect jets and passages for cleanliness, and verify proper choke operation.
Related Diagnostic Trouble Codes
P0130P0131P0132P0133P0134
Always confirm waveform data with your vehicle's OEM service manual before diagnosing.
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