P0171 OBD Trouble Code
1 result found
Type | Powertrain - Fuel and Air Metering - ISO/SAE Controlled |
---|---|
Description | Fuel System Lean Conditions |
Location | Bank 1 Sensor 1 |
Cause | ECT sensor over 170°F, engine running in closed loop, BTS ambient air input over 20°F, altitude less than 8000 ft., then the PCM detected an injector command that reduced pulse-width by 25% long term memory along with a 12% short term compensation command (a lean A/F condition). |
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