Chrysler PT Cruiser. Manual

NOTE: All engines use a fixed ignition timing sys-
tem. Basic ignition timing is not adjustable. All
spark advance is determined by the Powertrain
Control Module (PCM).

The ignition system used on these engines is

referred to as the Direct Ignition System (DIS). The
system’s four main components are the coils, crank-
shaft position sensor, spark plugs, and camshaft posi-
tion sensor. If equipped with the coil on plug ignition

system it utilizes an ignition coil for every cylinder
and is mounted directly over the each spark plug.

OPERATION - IGNITION SYSTEM

The crankshaft position sensor and camshaft posi-

tion sensor are hall effect devices. The camshaft posi-
tion sensor and crankshaft position sensor generate
pulses that are inputs to the PCM. The PCM deter-
mines engine position from these sensors. The PCM
calculates injector sequence and ignition timing from
crankshaft & camshaft position. For a description of
both sensors, refer to Camshaft Position Sensor and
Crankshaft Position Sensor.

IGNITION CONTROL

8I - 1

SPECIFICATIONS

FIRING ORDER - 2.0/2.4/2.4 TURBO

TORQUE

DESCRIPTION

N·m

Ft. Lbs.

In. Lbs.

2.0/2.4L Camshaft

Position Sensor Screw

115

Cam Magnet/Target

3.6

2.0/2.4L Crankshaft

Position Sensor Screw

1.6L Cam/Crank Sensor

Screw

Coolant Temp. Sensor

18.6

165

Ignition Coil to Cyl. Head

11.8

105

Knock Sensor Bolt

195

2.0/2.4L Spark Plugs *

17.6 ±2

13 ±2

1.6L Spark Plugs

27 ±2.7

20 ±2

* Tapered seat plugs. Imperative that torque is NOT EXCEEDED.

IGNITION COILS

Engines

Coil Manufacture

Primary Resistance at
21°C-27°C (70°F-80°F)

Secondary Resistance at 21°C-27°C
(70°F-80°F)

1.6L

Weastec

0.45 to 0.65 Ohms

11,500 to 14,700 Ohms

2.0/2.4L

Toyodenso/
Diamond

0.45 TO 0.65 Ohms

11,500 to 14,700 Ohms

8I - 2

IGNITION CONTROL

IGNITION CONTROL (Continued)

SPARK PLUGS

ENGINE

PLUG TYPE

ELECTRODE GAP

1.6L

RC9MCC

0.84 to 0.97 mm (0.033 to

0.038 in.)

2.4L

Non-

Turbo

RE16MC

1.24 to 1.37 mm (0.048 to

0.053 in.)

2.0/2.4L

Turbo

RE14MCC5

1.24 to 1.37 mm (0.048 to

0.053 in.)

SPARK PLUG CABLE RESISTANCE

1.6L

CABLE

RESISTANCE

2746 ohms— 8533 ohms

2532 ohms— 7352 ohms

3386 ohms— 10,453 ohms

3632 ohms— 11,191 ohms

2.0/2.4L

CABLE

RESISTANCE

#1, #2, #3, #4

2280 ohms— 7290 ohms

2.4L TURBO

CABLE

RESISTANCE

#1,#2, #3

2280 ohms— 7290 ohms

2686 ohms— 8062 ohms

SPECIAL TOOLS - EXPORT

Coil Polarity - 1.6L

Coil Polarity - 2.0/2.4L

PROTECTIVE SLEEVE

IGNITION CONTROL

8I - 3

IGNITION CONTROL (Continued)

Chrysler PT Cruiser. Manual - part 493