garajizOBD-II code · manufacturer-specific
P1142
Lack Of HO2S Switch - Sensor Indicates Lean
- System
- P1 — Powertrain (manufacturer-specific)
- Severity
- Minor (2/5)
- Can I keep driving?
- Usually safe to drive
What does P1142 mean?
P1142 is defined as “Lack Of HO2S Switch - Sensor Indicates Lean”.
You can usually keep driving, but have it checked soon so a small fault doesn’t become a bigger one.
Manufacturer-specific meanings
The same code can mean something different on some makes.
- Ford, Lincoln, Mercury: Fuel Restriction Condition
- Mazda: HO2S Bank 1 Sensor 2 Heater Circuit High Input
- Volkswagen: Load Calculation Cross Check Lower Limit Exceeded
- Subaru: Mass Air Flow Sensor Circuit Low Input
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This page is general information; an exact diagnosis needs measurements and a technician’s check.