PREVOST LE MIRAGE XLII BUS SHELLS User Manual

Section 01: ENGINE
PA1553
6
2.7 TURBO BOOST PRESSURE SENSOR
The Turbo Boost Pressure Sensor is located on
the intake manifold. This device is a pressure
sensor that sends an electrical signal to the
ECM. The ECM uses this information to
compute the volume of air entering the engine.
Turbo boost sensor information regulates fuel
supply to control engine exhaust.
The turbo boost pressure sensor is non-
serviceable and must be replaced as an
assembly. No adjustment is required.
FIGURE 7: TURBO BOOST PRESSURE SENSOR 01138
2.8 COOLANT TEMPERATURE SENSOR
The coolant temperature sensor (Fig. 1) is
mounted on the engine's radiator side (turbo
side). The sensor helps protect the engine
against overheating by sensing coolant
temperature.
2.9 FUEL TEMPERATURE SENSOR
The Fuel Temperature Sensor (FTS) is installed
underneath the fuel pump (Fig. 8).
The FTS sends an electrical signal to the ECM
indicating fuel inlet temperature. The ECM uses
this information to calculate fuel consumption.
The FTS is non-serviceable and must be
replaced as a unit. No adjustment is required.
FIGURE 8: FUEL TEMPERATURE SENSOR 03053B
2.10 AIR TEMPERATURE SENSOR
The Air Temperature Sensor (Fig. 1 & 7) located
on the intake manifold provides input data to
vary hot idle speed and injection timing. This
helps to improve cold starts and reduces white
exhaust smoke.
2.11 TURBO COMPRESSOR IN
TEMPERATURE SENSOR
The Turbo Compressor In Temperature Sensor
is located on the engine air intake pipe (Fig. 9).
FIGURE 9: TURBO COMPRESSOR IN TEMPERATURE
SENSOR LOCATION
01170
2.12 ABSOLUTE OIL PRESSURE SENSOR
The Absolute Oil Pressure Sensor (OPS) is
installed in the main engine-oil gallery. A typical
location is the left rear corner of the cylinder
block (Fig. 10). The OPS sends an electrical
signal to the ECM indicating the engine oil
pressure at any given speed. A low oil pressure
signal exceeding seven seconds is used by the
ECM to begin the stop engine or warning
function. The OPS is non-serviceable and must
be replaced as a unit. No adjustment is required.
FIGURE 10: ENGINE OPS
01025B

PREVOST LE MIRAGE XLII BUS SHELLS Specifications

General

Brand	PREVOST
Model	LE MIRAGE XLII BUS SHELLS
Category	Buses
Language	English