Jetta GL L4-1.9L DSL Turbo (ALH) (2001)
If rod does not move but bypass regulator valve works:
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Connect VAG 1390 or equivalent vacuum pump to wastegate bypass regulator valve and check rod for ease of movement.
If rod does not move easily:
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Replace turbocharger assembly.
Wastegate Bypass Regulator valve -N75-, checking
Disconnect 2-pin electrical connector from wastegate bypass regulator valve (arrow).
Resistance, checking