FUEL SYSTEM/ENGINE MANAGEMENT 9
EVAPORATIVE LOSS CONTROL SYSTEM
California Models Only
All California models are fitted with a system to control
the evaporation of fuel vapour into the atmosphere.
A carbon cannister absorbs vapour while the engine is
not running and, when the engine is started, the vapour is
returned to the engine and burnt.
There are two distinct phases to the system's operation,
engine off and engine running. These two conditions are
explained overleaf.
Component Locations
Carbon Cannister -
behind the throttle bodies.
Pressure Control Valve -
in the vapour line from the fuel
tank.
Return Valve -
adjacent to frame, left hand side
(electronically controlled by the ECM).
Roll Over Valve -
in the vapour line from the fuel tank.
NOTE:
•
On the following two pages, the earlier
evaporative system is depicted. The . later
system, shown below, operates in the same way.
oa.,o
A
9.101
To Next Page
Loading...
Need help?
General
