How to test and replace an oxygen sensor?

The oxygen sensor is a device that produces a voltage when exposed to oxygen in the exhaust gases. It is in the exhaust system and can be heated internally for faster reaction. The sensor produces a voltage between zero and one volt, with a low voltage indicating a lean mixture and a high voltage indicating a rich mixture. The stoichiometric air to fuel ratio causes the voltage to fluctuate.

Genuine Cadillac Fleetwood Oxygen Sensor

Oxygen O2 Sensor

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3 Oxygen Sensors found

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Cadillac Fleetwood Sensor Asm,Heated Oxygen
Part Number: 19178930
$61.22 MSRP: $127.12
You Save: $65.90 (52%)
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Product Specifications
- Other Name: SENSOR, Computer Control Sensors; Front Oxygen Sensor, Oxygen Sensor
- Replaces: 25171579, 25312184, 25165313
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1994-1996 Cadillac Fleetwood | BROUGHAM, BROUGHAM 4 DOOR | 8 Cyl 5.7L
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Cadillac Fleetwood Sensor Asm,Oxygen
Part Number: 19211435
$51.22 MSRP: $164.76
You Save: $113.54 (69%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: SENSOR, Computer Control Sensors; Oxygen Sensor
- Replaces: 25165116, 19178746, 19178940, 25106169, 25165119, 5613719, 05613719
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1987-1990 Cadillac Fleetwood | 2 DOOR, 4 DOOR, 60 SPECIAL 4 DOOR, CONVERSION, FUNERAL COACH, LIMOUSINE 4 DOOR, LIMOUSINE 4 DOOR CTR PART | 8 Cyl 4.1L, 8 Cyl 4.5L
- 1982-1985 Cadillac Fleetwood | 2 DOOR, 4 DOOR, BROUGHAM 2 DOOR, BROUGHAM 2 DOOR RWD, BROUGHAM 4 DOOR, BROUGHAM 4 DOOR RWD, FORMAL LIMOUSINE, LIMOUSINE | 8 Cyl 4.1L, 8 Cyl 6.0L
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Cadillac Fleetwood Sensor,Exhaust Oxygen
Part Number: 19211437
$15.80 MSRP: $33.26
You Save: $17.46 (53%)
Product Specifications
- Other Name: SENSOR, Computer Control Sensors; Oxygen Sensor
- Replaces: 19178952, 25162600, 25106073, 25132068, 25166816, 25171574, 25107378, 25162693, 25165118, 25171581, 25165120, 25171573, 19178943, 19178953, 19178919, 25162753, 25133185, 25133076
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1993 Cadillac Fleetwood | BROUGHAM 4 DOOR | 8 Cyl 5.7L
- 1982-1986 Cadillac Fleetwood | 2 DOOR, 4 DOOR, BROUGHAM 2 DOOR, BROUGHAM 2 DOOR FWD, BROUGHAM 2 DOOR RWD, BROUGHAM 4 DOOR, BROUGHAM 4 DOOR FWD, BROUGHAM 4 DOOR RWD, FORMAL LIMOUSINE, FUNERAL COACH, LIMOUSINE, LIMOUSINE 4 DOOR, LIMOUSINE 4 DOOR CTR PART | 6 Cyl 4.1L, 8 Cyl 4.1L, 8 Cyl 5.0L

Cadillac Fleetwood Oxygen Sensor Parts Questions & Experts Answers

Sensor Asm,Heated Oxygen
19178930
Q: How to test and replace an oxygen sensor?
A: The oxygen sensor is a device that produces a voltage when exposed to oxygen in the exhaust gases. It is in the exhaust system and can be heated internally for faster reaction. The sensor produces a voltage between zero and one volt, with a low voltage indicating a lean mixture and a high voltage indicating a rich mixture. The stoichiometric air to fuel ratio causes the voltage to fluctuate.