Cabrio GL L4-2.0L (ABA) (2001)
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Open pressure tester VAG 1318 shut-off tap (handle in through-flow direction).
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Start engine and run at idle speed.
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Switch ignition off after pressure has built-up. At same time pinch/seal return hose together.
If the pressure does not drop:
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Replace fuel pressure regulator, item 22.
If the pressure drops again:
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Check pipe connections, O-rings on fuel manifold and injectors for leaks.
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Check pressure gauge for leaks.
NOTE: Before removing pressure gauge place a cloth around the connections to be loosened.