Touareg V8-4.2L (AXQ) (2006)
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Switch ignition on.
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Operate remote control for 30 seconds.
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Repeat test on other fuel injectors. Use new graduated measuring glasses for this.
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Switch ignition off.
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After all fuel injectors have been activated, place graduated measuring glasses on a level surface and compare quantity of injected fuel.
Specified value: 95 to 115 ml per valve
If the measured value of one or more fuel injectors is below or above the indicated specified value:
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Replace faulty fuel injector (Cylinder 1 Fuel Injector (N30) to Cylinder 4 Fuel Injector (N33), Cylinder 5 Fuel Injector (N83) to Cylinder 8 Fuel
Injector (N86)).
Note the following when installing the fuel injectors:
‹› Replace O-rings on all fuel injectors and wet them slightly with clean motor oil.
‹› Insert fuel injectors into fuel distributor perpendicular and in the right position, and secure them with retaining clips.
‹› Position fuel distributor on intake manifold using secured fuel injectors and apply uniform pressure to press it in.
‹› The connectors must audibly engage on valves when attached.
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Erase DTC memory of Engine Control Module (ECM) , Diagnostic mode 4: Reset/erase diagnostic data.
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Generate readiness code.