TT L4-1.8L Turbo (BEA) (2004)
If specified value is not obtained:
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Check wire connections.
Check wire connections for Mass Air Flow (MAF) sensor
NOTE: Signal wire is also checked during wire test.
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Connect VAG1598/31 test box at wiring harness to ECM, do not connect ECM. See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Reading and Clearing Diagnostic Trouble Codes/Scan Tool Connecting/With Manufacturer's Scan Tool/Electrical
Testing Using VAG1598/31 Test Box
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Check the following wire connections for open circuit and short circuit to Ground (GND) and B+:
Harness connector
VAG1598/31 test box
Terminal
Socket
3
27
4
53
5
29
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Repair open circuit or short circuit if necessary.
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Also check all wires for short circuit to each other.
If wire connection is OK:
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Replace Mass Air Flow (MAF) sensor -G70-.