1.3 MULTIJET 16V
(75 & 90 HP)
FIAT PUNTO TRAINING OUTLINE
Fiat Auto S.p.A.
After Sales Training
3.2.17 Inlet manifold
The air capacity box (made of plastic material) receives pressure air, cooled by the intercooler,
and conveys the same directly to the cylinder head.
The overpressure sensor, connected to the injection control unit, is fitted onto the box. A
diffuser is positioned at the manifold intake, which is used to let in the exhaust gas from the
E.G.R. valve and flowing toward the cylinders.
3.2.18 Exhaust pipes and silencer
The engine’s exhaust gas flows through the manifold to the turboblower and, next, to the
oxidizing catalytic converter (1).
A flexible element (2) is found in the front part of the exhaust pipe, which is used to reduce the
transmission of vibrations.
The rear exhaust section is made up of a, intermediate pipe (3) and a rear silencer (4).
Special guards reduce heat diffusion toward the body.
The various components are supported by means of special supports (5) and snap rings (6)
secured to the underbody.
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