OBD-II code · manufacturer-specific
P1151
Fuel Restriction Indicator Circuit Malfunction
- System
- P1 — Powertrain (manufacturer-specific)
- Severity
- Moderate (3/5)
- Can I keep driving?
- Drive with caution
What does P1151 mean?
P1151 is defined as “Fuel Restriction Indicator Circuit Malfunction”.
Drive gently and only as far as you need to; have it checked as soon as possible.
Manufacturer-specific meanings
The same code can mean something different on some makes.
- Volkswagen: Bank 1 Long Term Fuel Trim Range 1 Lower Lean Limit Exceeded
- Mazda: HO2S Bank 2 Sensor 1 Signal Below 0.45v AF Ratio Too Lean
- Citroen, Diğer, Peugeot: Lack Of HO2S21 Switch - Sensor Indicates Lean
- Ford, Lincoln, Mercury: Lack of Upstream Heated Oxygen Sensor Switch Sensor Indicates Lean Bank 2
- BMW: O2 Sensor Heater Circuit Signal Intermittent Bank 2 Sensor 1
- Subaru: Rear Oxygen Sensor Heater Circuit High Input
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This page is general information; an exact diagnosis needs measurements and a technician’s check.