Isuzu Rodeo UE. Service manual - part 252

6E1–379

RODEO X22SE 2.2L ENGINE DRIVEABILITY AND EMISSION

Hesitation, Sag, Stumble

1. OBD system check.
2. TP.
3. MAP output check.
4. Fuel system diagnosis.
5. Fuel injector and fuel injector

balance test.

6. EVAP emission canister purge

valve.

7. Ignition system.

EGR Operation

EGR System Check
Generator Output Voltage (refer
to Chassis Electrical)
Calibration ID/Service Bulletins
Ignition System Check

Cuts Out, Misses

1. OBD system check.
2. Cylinder balance test.

Ignition System Check

Rough, Unstable, or Incorrect Idle,
Stalling

1. OBD system check.
2. Fuel injector and fuel injector

balance test.

3. EVAP emission canister purge

valve check.

4. Ignition system.
5. IAC operation.
6. EGR operation.

MAP Output Check 

Throttle Linkage
IAC System Check
EGR System Check
A/C Clutch Control Circuit Diag-
nosis
 Crankcase Ventilation System
Calibration ID/Service Bulletins
Generator Output Voltage (refer
to Chassis Electrical)
Exhaust Diagnosis

Poor Fuel Economy

1. OBD system check.
2. Careful visual/physical inspection.
3. Ignition system.
4. Cooling system.

TCC Operation

Exhaust System (refer to Engine
Exhaust)

Engine Cranks But Will Not Run

1. OBD system check.

Fuel System Electrical
Diagnosis 

Fuel System Diagnosis
Fuel Injector
Fuel Injector Balance Test

Excessive Exhaust Emissions or
Odors

1. OBD system check.
2. Emission test.
3. Cooling system.
4. Fuel system diagnosis.
5. Fuel injector and fuel injector

balance test.

6. EVAP emission canister purge

valve.

7. Crankcase ventilation system.
8. Ignition system.
9. MAP output check.

EGR System Check 

Exhaust Diagnosis
Calibration ID/Service Bulletins

Dieseling, Run–On

1. OBD system check.
2. Careful visual/physical inspection.
3. Fuel system diagnosis.

—

Backfire

1. OBD system check.
2. Ignition system.
3. Fuel system diagnosis.
4. Fuel injector and fuel injector

balance test.

5. EGR operation, EGR system

check.

Exhaust System Diagnosis,
Intake Casting Flash, Ignition
System Check

6E1–380

RODEO X22SE 2.2L ENGINE DRIVEABILITY AND EMISSION

Misfire

1. OBD system check.
2. Ignition system.
3. Fuel system diagnosis.
4. Fuel injector and fuel injector

balance test.

Vibrations, Transmission,
Driveshaft and Axle

Catalyst Monitor

1. OBD system check.
2. Careful visual/physical inspection.
3. Heated oxygen sensors.

Exhaust System

Fuel Trim

1. OBD system check.
2. Careful visual/physical inspection.
3. Fuel system diagnosis.
4. Heated oxygen sensors.

Exhaust System Intake Air
System

Evaporative Emissions

1. OBD system check.
2. Careful visual/physical inspection.
3. Fuel system diagnosis.

—

Heated Oxygen Sensors

1. OBD system check.
2. Careful visual/physical inspection.

Exhaust System

6E1–381

RODEO X22SE 2.2L ENGINE DRIVEABILITY AND EMISSION

Camshaft Position (CMP)

 Sensor

Removal Procedure

1. Disconnect the negative battery cable.
2. Remove spark plug cover on top of valve cover by

removing four retaining bolts.

3. Disconnect electrical connector from the sensor.

014RX003

4. Remove drive belt. Refer to Engine Mechanical

Section.

5. Remove top harness cover installed on timing belt

cover by removing a retaining screw.

6. Remove the retaining bolts holding crankshaft pulley,

and pull crankshaft pulley while wiggling. Refer to
Engine Mechanical Section.

7. Remove the retaining screws for timing belt cover and

timing belt cover.

014RX004

8. Remove the retaining bolt for the sensor and pull up

camshaft position sensor.

014RX005

Installation Procedure

1. Insert camshaft position sensor in position.
2. Install retaining bolt.

014RX007

3. Install the timing belt cover and the retaining screws.
4. Install the crank shaft pulley and the mounting bolts.

Holes for mounting bolts are off the pitch. The pulley
can be mounted only one way to install all mounting
bolts. Tighten the bolts. Refer to Engine Mechanical
section.

6E1–382

RODEO X22SE 2.2L ENGINE DRIVEABILITY AND EMISSION

5. Install the drive belt. Refer to Engine Mechanical

Section.

014RX005

6. Install the top harness cover onto timing belt cover.
7. Connect electrical connector to the sensor and

securely lock it.

8. Install the spark plug cover.
9. Connect the negative battery cable.

014RX004

Crankshaft Position (CKP) 

Sensor

Removal Procedure

1. Disconnect the negative battery cable.
2. Remove the drive belt. Refer to Engine Mechanical

Section.

014RX003

3. Remove the pwer steering pump and

mounting–bracket from engine. Refer to Engine
Mechanical Section.

4. Disconnect electrical connector from the sensor.

014RX006