Inlet Air Temperature Sensor; Removal; Installation; Manifold Tune Valve Removal - 3.5L - Chrysler 300M Service Manual

LH
INLET AIR TEMPERATURE
SENSOR

REMOVAL

(1) Remove the negative battery cable.
(2) Disconnect electrical connector from sensor.
(3) Remove sensor from clean air hose to throttle
body.
INLET TEMPERATURE SENSOR 2.7L
INLET TEMPERATURE SENSOR - 3.5L

INSTALLATION

(1) Install sensor into clean air hose to throttle
body.
(2) Attach electrical connector to sensor.
(3) Install the negative battery cable.
MANIFOLD TUNE VALVE
REMOVAL - 3.5L
(1) Disconnect negative battery cable.
(2) Disconnect electrical connector (Fig. 13).
Fig. 13 Manifold Tuning Valve
1 - MTV VALVE
(3) Remove manifold
screws. Remove tuning valve.

INSTALLATION - 3.5L

(1) Install tuning valve. Tighten mounting screws
to 11.9 N·m (105 in. lbs.) torque.
(2) Install electrical connector.
(3) Connect negative battery cable.
MAP SENSOR
DESCRIPTION
The MAP sensor mounts to the driver side of the
intake manifold plenum (Fig. 14) or (Fig. 15).

OPERATION

The MAP serves as a PCM input, using a silicon
based sensing unit, to provide data on the manifold
vacuum that draws the air/fuel mixture into the com-
bustion chamber. The PCM requires this information
to determine injector pulse width and spark advance.
When MAP equals Barometric pressure, the pulse
width will be at maximum.
Also like the cam and crank sensors, a 5 volt ref-
erence is supplied from the PCM and returns a volt-
age signal to the PCM that reflects manifold
pressure. The zero pressure reading is 0.5V and full
scale is 4.5V. For a pressure swing of 0 — 15 psi the
voltage changes 4.0V. The sensor is supplied a regu-
FUEL INJECTION 14 - 27
tuning valve mounting