LH
THROTTLE POSITION SENSOR (Continued)
Fig. 28 THROTTLE POSITION SENSOR 3.2/3.5L
1 - TPS
2 - IAC
ating conditions. The PCM also adjusts fuel injector
pulse width and ignition timing based on these
inputs.
REMOVAL
REMOVAL - 2.7L
(1) Remove the negative battery cable.
(2) Disconnect the TPS electrical connector (Fig. 29).
(3) Remove the TPS mounting screws.
(4) Remove the TPS.
REMOVAL - 3.5L
(1) Disconnect the negative battery cable.
(2) Disconnect the air plenum.
(3) Disconnect the TPS electrical connector (Fig.
28).
(4) Remove the TPS mounting screws.
(5) Remove the TPS.
INSTALLATION
INSTALLATION - 2.7L
(1) The throttle shaft end of the throttle body
slides into a socket in the TPS. The socket has two
tabs inside it. The throttle shaft rests against the
tabs. When indexed correctly, the TPS can rotate
clockwise a few degrees to line up the mounting
screw holes with the screw holes in the throttle body.
ENGINE
Fig. 29 Throttle Position Sensor—2.7L Engine
1 - TPS SENSOR
2 - THROTTLE BODY
3 - PCV VALVE
4 - EGR TUBE
The TPS has slight tension when rotated into posi-
tion. If it is difficult to rotate the TPS into position,
install the sensor with the throttle shaft on the other
side of the tabs in the socket. Tighten mounting
screws to 5.1 N·m (45 in. lbs.) torque.
(2) After installing the TPS, the throttle plate
should be closed. If the throttle plate is open, install
the sensor on the other side of the tabs in the socket.
(3) Attach electrical connector to the TPS.
(4) Install the negative battery cable.
INSTALLATION - 3.5L
(1) The throttle shaft end of the throttle body
slides into a socket in the TPS. The socket has two
tabs inside it. The throttle shaft rests against the
tabs. When indexed correctly, the TPS can rotate
clockwise a few degrees to line up the mounting
screw holes with the screw holes in the throttle body.
The TPS has slight tension when rotated into posi-
tion. If it is difficult to rotate the TPS into position,
install the sensor with the throttle shaft on the other
side of the tabs in the socket. Tighten mounting
screws to 6.2 N·m (55 in. lbs.) torque.
(2) After installing the TPS, the throttle plate
should be closed. If the throttle plate is open, install
the sensor on the other side of the tabs in the socket.
(3) Attach electrical connector to the TPS.
(4) Install air plenum and tighten the clamp.
(5) Connect the negative battery cable.
FUEL INJECTION 14 - 35