Jetta GL L4-1.9L DSL Turbo (ALH) (2001)
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Disconnect 10-pin electrical connector for Fuel Cut -off valve -N109- (arrow) on Diesel injection pump.
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Disconnect connectors from glow plugs.
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Remove all glow plugs using 3220 flexible wrench.
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Thread in VAG 1381/12 adaptor in place of glow plugs.
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Check compression using VAG VAG 1763 compression tester.
Note: See operating instructions for correct use of compression tester.
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Operate starter until tester displays no further increase in pressure.
Compression pressure
new: 25 to 31 bar (362.5 to 449.5 psi)
Wear limit 19 bar (275.5 psi)
Permissible difference between all cylinders:
^
5 bar (72.5 psi)
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Install glow plugs using 3220 flexible wrench. Tightening torque: 15 Nm (11 ft. lbs.)
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Check Diagnostic Trouble Code (DTC) memory:
Note: DTCs will be stored because the Diesel injection pump harness connector has been disconnected. Check and erase the DTC memory.
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Read readiness code.
If the DTC memory was erased or the engine control module is subject to low voltage with ignition ON, reset readiness code again.
