For Volkswagen 1.9 TDI engine codes ALH
To be used for VW part number 038-906-461-C, 038906461C, 038-906-461-CX, 038906461CX, 06A-906-461, 06A906461
Possible Fault Codes that may be a result of a bad Mass Air Flow Sensor
P0100 - Mass Air Flow Circuit Malfunction
P0101 - Mass Air Flow Circuit Range/Performance
P0102 - Mass Air Flow Circuit Low
P0103 - "Mass Air Flow Circuit High"
P0104 - "Mass Air Flow Circuit Intermittent"
P0171 System Too Lean (Bank 1)
P0174 System Too Lean (Bank 2)
Please have your vehicle diagnosed by a proffesional to confirm that this is the causal part for your problems.