P0153

Tests 1 - 3:

Tests 4 - 6:

SYMPTOM
P0153-2/1 O(2) SENSOR SLOW RESPONSE

TEST NOTE
This symptom is diagnosed using the test P0133-1/1 O(2) SENSOR SLOW RESPONSE.

WHEN MONITORED
Start engine. Allow engine to idle. For 1st part of test, if limits are exceeded, test passes. If not 2nd part of test runs. Ambient Temp great than 6.6 °C (44 °F), Baro greater than 22.13 Hg, Battery voltage 10.5 volts, MAP greater than 11.9 and less than 18.15" Hg, RPM greater than 1216 and less than 1984 and VSS greater 19 and less than 46 MPH.

SET CONDITION
The oxygen sensor signal voltage is switching from below 0.33 volts to above 0.61 volts and back fewer times than required.

POSSIBLE CAUSES
- Intermittent Condition
- Exhaust Leak
- O(2) Sensor Signal Circuit Voltage Drop
- O(2) Sensor Ground Circuit Voltage Drop
- O(2) Sensor