A8 Sedan V8-3.7L (AEW) (1997)
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Check wiring for open or short circuits between MAF sensor connector terminal 1 (Ground) and ECM/test box socket E7.
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If necessary, repair open circuit between connector terminal 1 and ECM terminal E7.
If voltage supply is OK:
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Check signal wiring.
Checking MAF sensor signal wiring
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Connect VAG1598/19 test box to ECM harness connector. Refer to "Scan Tool Testing/Scan Tool Connecting and Initial Checks/VAG1598/19
Test Box, Connecting" See: Powertrain Management/Computers and Control Systems/Testing and Inspection
