Audi AMB Service Manual page 239

ENGINE 1.8 Liter 4-Cyl. 5V Turbo Engine Mechanical, Engine Code(s): AMB
If wiring is OK:
Replace engine control module.

Wastegate bypass regulator valve N75 , checking
Fig. 313: Identifying Special Tools - Wastegate Bypass Regulator Valve N75 , Checking
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Special tools, testers and auxiliary items required
Multimeter VAG1526A or equivalent

Voltage tester VAG1527B
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Connector test set VAG1594A
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Adapter VAG1598/31
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2005 Audi A4 Quattro
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