Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHRYSLER1995NEW YORKER V6-3.5L VIN FREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSOXYGEN SENSORTESTING AND INSPECTIONSENSOR FUNCTIONAL TEST
1995 Chrysler New Yorker V6-3.5L VIN F
Sensor Functional Test
1995 Chrysler New Yorker V6-3.5L VIN FSECTION Sensor Functional Test
NOTE: This test should be performed only after basic inspection, and ignition and fuel systems inspections are passed.
NOTE: Only use a high input impedance Digital Volt Ohm Meter (DVOM) when testing components on computerized vehicles.
CAUTION: Verify DVOM is set to read VOLTS only (not ohms). Verify external voltage is not applied to the sensor lead, as damage to the sensor may occur.
1. Make sure the vehicle is at normal operating temperature. Run the engine at 2500 rpm for 3 minutes with the transmission in PARK (A/T) or NEUTRAL (M/T).
2. With engine OFF, connect the negative lead of the DVOM to engine ground. Set the DVOM to read DC VOLTS. Disconnect the oxygen sensor connector. Connect the positive lead of the DVOM to the oxygen sensor.
3. Create a full lean condition, by removing a large vacuum hose, for 10 seconds. Voltage should decrease to 0.2 volt or less and remain there.
4. Create a full rich condition, by introducing propane into intake manifold, for 10 seconds. Voltage should increase to 0.8 volt or less and remain there.
5. Verify that engine is at operating temperature and O2 sensor heating element (if equipped) is functioning. See, sensor heating element test.
6. If engine is at operating temperature and heating element passes, but the sensor fails to vary according to the test steps above, the sensor is defective.
7. Connect the oxygen sensor and clear codes.
NOTE: Only use a high input impedance Digital Volt Ohm Meter (DVOM) when testing components on computerized vehicles.
CAUTION: Verify DVOM is set to read VOLTS only (not ohms). Verify external voltage is not applied to the sensor lead, as damage to the sensor may occur.
1. Make sure the vehicle is at normal operating temperature. Run the engine at 2500 rpm for 3 minutes with the transmission in PARK (A/T) or NEUTRAL (M/T).
2. With engine OFF, connect the negative lead of the DVOM to engine ground. Set the DVOM to read DC VOLTS. Disconnect the oxygen sensor connector. Connect the positive lead of the DVOM to the oxygen sensor.
3. Create a full lean condition, by removing a large vacuum hose, for 10 seconds. Voltage should decrease to 0.2 volt or less and remain there.
4. Create a full rich condition, by introducing propane into intake manifold, for 10 seconds. Voltage should increase to 0.8 volt or less and remain there.
5. Verify that engine is at operating temperature and O2 sensor heating element (if equipped) is functioning. See, sensor heating element test.
6. If engine is at operating temperature and heating element passes, but the sensor fails to vary according to the test steps above, the sensor is defective.
7. Connect the oxygen sensor and clear codes.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.