What causes P1152 on a Ford?

Leaking bank 2 injector High fuel pressure Bank 2 upstream sensor stuck rich Restricted bank 2 air path Purge valve stuck open

How do I fix P1152 on a Ford?

Test fuel pressure and injector leak-down on bank 2 Check bank 2 plugs for fouling Test the purge valve seal Verify intake and filter condition Replace the bank 2 upstream sensor after excluding real rich causes

P1152 Lack of Upstream HO2S Switch - Sensor Indicates Rich (Bank 2)

Q: What does P1152 mean on a Ford?

P1152 — Lack of Upstream HO2S Switch - Sensor Indicates Rich (Bank 2). Applies to F-150, Mustang, Expedition, Explorer with V6 and V8 engines.

Category: Powertrain - Fuel/Air Metering
Severity: Check Engine Light
Applies to: F-150, Mustang, Expedition, Explorer with V6 and V8 engines

What does P1152 mean on a Ford?

P1152 — Lack of Upstream HO2S Switch - Sensor Indicates Rich (Bank 2). This Ford-enhanced code applies to F-150, Mustang, Expedition, Explorer with V6 and V8 engines.

Common causes of P1152

Leaking bank 2 injector
High fuel pressure
Bank 2 upstream sensor stuck rich
Restricted bank 2 air path
Purge valve stuck open

How to fix P1152

Test fuel pressure and injector leak-down on bank 2
Check bank 2 plugs for fouling
Test the purge valve seal
Verify intake and filter condition
Replace the bank 2 upstream sensor after excluding real rich causes