A4 Sedan L4-1.8L Turbo (AEB) (1997)
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Mass Air Flow Sensor: Technical Service Bulletins
Fuel System - Diagnostic Trouble Codes Set.
Group: 01
Number: 01-01
Date: Oct. 26, 2001
Subject:
VAG 1687 Diagnostic Tool, Checking Intake System for Leaks
Model(s):
All with 1.8L Turbo
1997-->
All with 2.7L BiTurbo
2000-->
Condition
Diagnostic trouble codes (DTC's) related to fuel trim, charge (boost) pressure or Mass air flow (MAF), may be caused by:
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Leaking (worn/torn) intake hoses during charge conditions
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Incorrectly torqued or improperly placed, clamps on intake hoses etc., causing leaks during charge conditions.
