Very Unlikely this will have any affect. sounds more like an air leak to me.
You will find all codes available at http://www.bluejag.co.uk/decode.php
Fault Code:- P0171 Indicates a Power-train fault
The fault is generally due to a problem in the Emission Management (Fuel or Air) area
Fault Description: Bank 1 combustion too lean
Action of ECM:- ECM Default:- Bank 1 catalyst warm-up ignition ****** inhibited- Bank 1 closed loop fuel metering inhibited- Canister purge inhibited- Maximum engine speed reduced
After clearing the DTC, complete the Start engine and bring to normal operating temperature> 82 °C (180 °F) Idle for 10 minutes
Check for a reoccurrence of fault DTC.
Possible Fault:- Engine misfire Air intake leak between MAF Sensor and throttle Fuel filter / system restriction Fuel injector restriction Low fuel pump output HO2 Sensor(s) (1/1, 1/2) harness wiring condition fault Exhaust leak (before catalyst) ECM receiving incorrect signal from one or more of the following components: ECT Sensor, MAF Sensor, IAT Sensor, TP Sensor
Fault Code:- P0174 Indicates a Power-train fault
The fault is generally due to a problem in the Emission Management (Fuel or Air) area
Fault Description: Bank 2 combustion too lean
Action of ECM:- ECM Default:- Bank 2 catalyst warm-up ignition ****** inhibited- Bank 2 closed loop fuel metering inhibited- Canister purge inhibited- Maximum engine speed reduced
After clearing the DTC, complete the Start engine and bring to normal operating temperature> 82 °C (180 °F) Idle for 10 minutes
Check for a reoccurrence of fault DTC.
Possible Fault:- Engine misfire Air intake leak between MAF Sensor and throttle Fuel filter / system restriction Fuel injector restriction Low fuel pump output HO2 Sensor(s) (2/1, 2/2) harness wiring condition fault Exhaust leak (before catalyst) ECM receiving incorrect signal from one or more of the following components: ECT Sensor, MAF Sensor, IAT Sensor, TP Sensor
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