garajizOBD-II code · manufacturer-specific
P1166
Bank 1 Long Term Fuel Trim Range 2 Upper Rich Limit Exceeded
- System
- P1 — Powertrain (manufacturer-specific)
- Severity
- Moderate (3/5)
- Can I keep driving?
- Drive with caution
What does P1166 mean?
P1166 is defined as “Bank 1 Long Term Fuel Trim Range 2 Upper Rich Limit Exceeded”.
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 2 Upper Rich Limit Exceeded
- Acura, Honda, Infiniti: HO2S11 Heater Circuit Fault Bank 1 Sensor 1
- Kia: O2 Sensor System Lambda Controller at the Limit Bank 1
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This page is general information; an exact diagnosis needs measurements and a technician’s check.