Ford DTC P1152 – Lack of Upstream Heated Oxygen Sensor Switch – Sensor Indicates Rich – Bank No. 2
DTC P1152 meaning on Ford
- DTC: P1152
- Definition: Lack of Upstream Heated Oxygen Sensor Switch – Sensor Indicates Rich – Bank No. 2
- Meaning: The engine control module (ECM) has detected that the upstream oxygen sensor in bank 2 is indicating a rich air-fuel mixture for an extended period.
Ford DTC P1152 symptoms
- Check Engine Light (CEL) illuminated
- Decreased fuel efficiency
- Rough idling or stalling
- Black smoke from the exhaust
Ford DTC P1152 causes
- Malfunctioning upstream oxygen sensor
- Vacuum leaks
- Fuel pressure regulator issues
- Dirty or clogged fuel injectors
Ford DTC P1152 seriousness
- Severity: Moderate
- Driving with this DTC may lead to decreased fuel efficiency and potential engine performance issues.
How to diagnose DTC P1152 on Ford
- Use an OBD-II scanner to retrieve the DTC and freeze frame data
- Inspect the upstream oxygen sensor in bank 2 for proper operation
- Check for vacuum leaks or fuel system issues
How to fix DTC P1152 on Ford
- Replace the upstream oxygen sensor in bank 2 if faulty
- Repair any vacuum leaks or fuel system problems
- Clean or replace clogged fuel injectors
How to erase DTC P1152 on Ford
- Use an OBD-II scanner to clear the DTC
- Ensure the underlying issue has been resolved before clearing the code
Recommended tools for Ford diagnostics
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