Cleaning Throttle Valve Module J338 - Volkswagen Amarok 2011 Workshop Manual

Amarok 2011 ➤
4-cylinder injection engine (2.0 l direct injection engine, turbocharger) - Edition 02.2011
– Unscrew 4 bolts -arrows- of throttle valve module -J338- and
remove throttle valve module -J338- .
Installing
– Install in reverse order.
– Clean sealing surface for O-ring.
– Renew seal.
• Specified torques: assembly overview - intake manifold
⇒ page 211 .
– After renewing throttle valve module -J338- it must be re-
adapted to engine control unit -J623- using vehicle diagnostic
tester.
2.14 Cleaning throttle valve module -J338-
Note
If a new engine control unit -J623- is installed, the throttle valve
♦
module must be adapted.
When cleaning the throttle valve nozzle it must not be scratch‐
♦
ed.
– Remove throttle valve module -J338-
– Open throttle valve by hand and lock it in open position using
a suitable object (e.g. wood or plastic wedge) -arrow-.
WARNING
Acetone is highly inflammable. Observe accident prevention
regulations and safety notes when handling highly inflammable
fluids. Do not use compressed air when cleaning throttle valve.
Wear eye protection and protective clothing to avoid eye inju‐
ries and skin contact.
– Thoroughly clean throttle valve connection, especially around
closed throttle valve -arrows- using commercially available
acetone to DIN 53247 and a brush.
– Wipe out throttle valve housing with a lint-free cloth.
– Allow acetone to vent completely and reinstall cleaned throttle
valve module.
– Clear learned values and adapt engine control unit -J623- to
throttle valve module, using vehicle diagnostic tester.
224
Rep. gr.24 - Mixture preparation - injection
⇒ page 223 .