📖 What Does P0136 Mean?
The downstream oxygen sensor on bank 1 (after catalytic converter) is not functioning properly.
Symptoms
Failed emissions test, check engine light, may have no noticeable drivability symptoms.
Common Causes
Faulty downstream oxygen sensor, damaged wiring, exhaust leaks after catalytic converter, sensor contamination.
Possible Solutions
Replace downstream oxygen sensor on bank 1, repair wiring damage, fix exhaust leaks, clean sensor connections.
Recommended Parts & Tools
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📦 Parts Needed
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Frequently Asked Questions about P0136
How serious is P0136?
This code has a medium severity level. This should be diagnosed and repaired soon to prevent further issues.
Can I drive with P0136?
You can typically drive short distances, but have it diagnosed as soon as possible.
How much does it cost to fix P0136?
Repair costs vary depending on the root cause, but typically range from $100-300 including parts and labor.
Related Diagnostic Codes
Other codes that may appear with P0136
Fuel and Air Metering Code P0100
Mass Air Flow Sensor Circuit Range/Performance Problem
Mass Air Flow Sensor Circuit Low Input
Mass Air Flow Sensor Circuit High Input
Fuel and Air Metering Code P0104
Fuel and Air Metering Code P0105
💡 Why These Codes Are Related:
- • Similar Issues: Same root cause or component failure
- • Related Problems: Often occur together due to system interactions
- • Sequential Codes: Progressive failure stages or multiple sensors
- • Same System: Components within the same automotive system