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24 – Mixture preparation - injection
1 Safety precautions and rules for
cleanliness
General notes on self-diagnosis ⇒ page 202
Releasing pressure in high-pressure area
Safety precautions ⇒ page 160 .
Rules for cleanliness ⇒ page 202 .
1.1 General notes on self-diagnosis
♦ The engine control unit has a self-diagnosis capability. Before
carrying out repairs and fault finding, read fault memory. Also
the vacuum hoses and connections must be checked (unme‐
tered air).
♦ Fuel hoses in engine compartment must be secured only with
spring-type clips. The use of clamp or screw-type clips is not
permissible.
♦ For trouble-free operation of electrical components, a voltage
of at least 11.5 volts is necessary.
♦ Do not use sealants containing silicone. Particles of silicone
drawn into the engine will not be burnt in the engine and dam‐
age the Lambda probe.
♦ Vehicles are fitted with a crash fuel shut-off circuit. This is in‐
tended to reduce the danger of a vehicle fire in a crash as the
fuel pump is switched off by the fuel pump relay.
♦ The system also improves the starting characteristics of the
engine. When the driver's door is opened, the fuel pump is
activated for 2 seconds in order to build up pressure in the fuel
system, note safety measures ⇒ page 160 .
Amarok 2011 ➤
4-cylinder injection engine (2.0 l direct injection engine, turbocharger) - Edition 02.2011
202 Rep. gr.24 - Mixture preparation - injection
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