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P0102, P0103 MAF SENSOR EC-121 < DTC/CIRCUIT DIAGNOSIS > [VQ40DE] C D E F G H I J K L M A EC N P O With CONSULT 1. Reconnect all harness connectors disconnected. *: Check for linear voltage rise in response to engine being increased to about 4,000 rpm. 5. If the voltage is out of specification, proceed the following. • Crushed air ducts • Malfunctioning seal of air cleaner element • Uneven dirt of air cleaner element • Improper specification of intake air system parts b. If NG, repair or replace malfunctioning part and perform step 2 to 4 again. If OK, go to next step. 6. Turn ignition switch OFF. EM-26, "Removal and Installation" Without CONSULT 1. Reconnect all harness connectors disconnected. signal) and ground. *: Check for linear voltage rise in response to engine being increased to about 4,000 rpm. 4. If the voltage is out of specification, proceed the following. • Crushed air ducts • Malfunctioning seal of air cleaner element • Uneven dirt of air cleaner element • Improper specification of intake air system parts b. If NG, repair or replace malfunctioning part and perform step 2 to 3 again. If OK, go to next step. 5. Turn ignition switch OFF. Condition MAS A/F SE-B1 (V) Ignition switch ON (Engine stopped.) Approx. 0.4 Idle (Engine is warmed-up to normal 0.9 - 1.2 2,500 rpm (Engine is warmed-up to 1.5 - 1.8 Idle to about 4,000 rpm 0.9 - 1.2 to Approx. 2.4* Condition Voltage V Ignition switch ON (Engine stopped.) Approx. 0.4 Idle (Engine is warmed-up to normal 0.9 - 1.2 2,500 rpm (Engine is warmed-up to 1.5 - 1.8 Idle to about 4,000 rpm 0.9 - 1.2 to Approx. 2.4* PBIB1106E August 2012 2012 Pathfinder |