P1132 — Lack of Upstream HO2S Switch — Indicates Rich (Bank 1)
CAUTIONIs it safe to drive? Drive gently and get it looked at soon — it can worsen or fail inspection.
What P1132 means
This is a manufacturer-specific code — its meaning depends on the vehicle’s make (see below).
What P1132 means on specific makes
Ford / Lincoln CAUTION
Mirror of P1131 — the bank 1 front O2 reads rich and the PCM is pulling fuel out to compensate. Indicates an actual rich condition or a skewed sensor.
- Leaking/dripping fuel injector ($100-300)
- High fuel pressure / bad regulator ($50-200)
- Contaminated O2 sensor ($50-150)
- MAF over-reporting ($50-150)
Check first: Check fuel pressure and watch for negative long-term fuel trims; inspect for fouled plugs.
Source: TroubleCodes.net Ford list