P1152 – Ford DTC

Ford DTC P1152 – Lack of Upstream Heated Oxygen Sensor Switch – Sensor Indicates Rich – Bank No. 2

DTC P1152 meaning on Ford

1. DTC: P1152
2. Definition: Lack of Upstream Heated Oxygen Sensor Switch – Sensor Indicates Rich – Bank No. 2
3. 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

1. Severity: Moderate
2. Driving with this DTC may lead to decreased fuel efficiency and potential engine performance issues.

How to diagnose DTC P1152 on Ford

1. Use an OBD-II scanner to retrieve the DTC and freeze frame data
2. Inspect the upstream oxygen sensor in bank 2 for proper operation
3. Check for vacuum leaks or fuel system issues

How to fix DTC P1152 on Ford

1. Replace the upstream oxygen sensor in bank 2 if faulty
2. Repair any vacuum leaks or fuel system problems
3. Clean or replace clogged fuel injectors

How to erase DTC P1152 on Ford

1. Use an OBD-II scanner to clear the DTC
2. Ensure the underlying issue has been resolved before clearing the code