Isuzu Amigo / Axiom / Trooper / Rodeo / VehiCross. Manual - part 1251

6E1–80

RODEO Y22SE 2.2L ENGINE DRIVEABILITY AND EMISSION

Tech 2

Parameter

Refer To

Typical Data

Values (2500

RPM)

Typical Data

Values (IDLE)

Units

Displayed

Data List

Throttle Position
Sensor

Engine

V

0.33

0.53

General Discription and
Opreration, Throttle Position
Sensor. DTC
P0121,P0122,P0123,P1121,
P1122

Calculated Air
Flow

Engine

g/s

4.03

12.38

General Discription and and
Operation, Manifold Air Flow
sensor

Air Fuel Ratio

Engine

Ratio:_to1

13.6

14.6:1

General Discription and
Operation, Fuel System
Metering Purpose, Fuel Trim

Spark Advance

Engine

°

CA

7

32

General Discription and and
Operation, Electronic
Ignition System

Engine Load

Engine

%

3

12

–

Fuel system
Status

Engine

Closed
Loop

Open loop

Closed loop

EVAP System

EGR Duty Cycle

Engine

%

0

0

General Discription and and
Operation, Liner EGR
Operation and Results of
Incorrect Operation

Desired EGR
Position

Engine

%

0

0

General Discription and and
Operation, EGR Pintle
Position Sensor

EGR
Normalized

Engine

%

0

0

–

EGR Feed Back

Engine

V

0.7

0.7

–

EGR Closed
Pintle Position

Engine

Steps

35

35

General Discription and and
Operation, EGR Pintle
P

iti

S

Knock Present

Yes/No

No

No

Position Sensor

Knock Counter

Engine

Counts

6

6

DTC P0325,P0327

Knock Retard

Engine

°

CA

0.0

0.0

DTC P0325,P0327

A/C Pressure
Sensor

Engine

mV

1

1

DTC P0532,P0533

A/C Clutch
Relay

Engine

On/Off

Off

Off

General Discription and and
Operation, A/C Culutch
Circuit Operation

A/C Request

Engine

Yes/No

No

No

General Discription and and
Operation, A/C Request
Signal

Low Fan
Comanded

Engine

On/Off

Off

Off

General Discription and and
Operation, Cooling Fan
Control. DTC P0480,P0481

High Fan
Comanded

Engine

On/Off

Off

Off

General Discription and and
Operation, Cooling Fan
Control. DTC P0480,P0481

Camshaft
Activity

Engine

Counts

16

231

DTC P0341,P0342

6E1–81

RODEO Y22SE 2.2L ENGINE DRIVEABILITY AND EMISSION

Tech 2

Parameter

Refer To

Typical Data

Values (2500

RPM)

Typical Data

Values (IDLE)

Units

Displayed

Data List

EVAP Vent
Valve

Engine

On/Off

Off

Off

Diagnosis, EVAP Canister
Purge Solenoid And EVAP
Vacuum Switch and Visual
Check. DTC P1441

EVAP Purge
Solenoid

Engine

%

0

6

Diagnosis, EVAP Emission
Canister Purge Valve Check

Low Fuel Lamp

Engine

On/Off

On

On

Engine Fuel. DTC
P0461,P0462,P0463

Fuel Level
Sensor

Engine

V

2.73

2.73

Engine Fuel. DTC
P0461,P0462,P0463

Fuel Level

Engine

%

9

9

Engine Fuel. DTC
P0461,P0462,P0463

Fuel Pump

Engine

On/Off

On

On

Engine Fuel System

Fuel Tank
Pressure
Sensor

Engine

V

1.43

1.43

Diagnosis, EVAP Canister
Purge Solenoid And EVAP
System

Deceleration
Fuel Cutoff

Engine

Inactive/Ac
tive

Inactive

Inactive

General Discription and and
Operation

Idle Air Control 

Engine

Steps

31

77

General Discription and and
Operation, Intake Air
tempereture sensor

Vehicle Speed

Engine

MPH or
km/h

0

0

Manual Transmission

Ignition Voltage

Engine

V

14.2

14.3

General Discription and and
Operation, Electronic
Ignition System

Malfunction
Indicator Lamp

Engine

On/Off

Off

Off

On–Board Diagnostic
System Check

Up Shift Lamp

Engine

On/Off

On

On

Up–Shift Lamp system
Check

Time From Start

Engine

Hrs:Min:Se
c

00:00:12

00:00:26

–

Misfire Current
Cyl.#1

Engine
Misfire

Counts

0

0

DTC P0300,P0301

Misfire Current
Cyl.#2

Engine
Misfire

Counts

0

0

DTC P0300,P0302

Misfire Current
Cyl.#3

Engine
Misfire

Counts

0

0

DTC P0300,P0303

Misfire Current
Cyl.#4

Engine
Misfire

Counts

0

0

DTC P0300,P0304

Misfire History
Cyl.#1

Engine
Misfire

Counts

0

0

DTC P0300,P0301

Misfire History
Cyl.#2

Engine
Misfire

Counts

0

0

DTC P0300,P0302

Misfire History
Cyl.#3

Engine
Misfire

Counts

0

0

DTC P0300,P0303

Misfire History
Cyl.#4

Engine
Misfire

Counts

0

0

DTC P0300,P0304

Misfire Failure
Since First Fail

Engine
Misfire

Counts

0

0

DTC P0300

6E1–82

RODEO Y22SE 2.2L ENGINE DRIVEABILITY AND EMISSION

Tech 2

Parameter

Refer To

Typical Data

Values (2500

RPM)

Typical Data

Values (IDLE)

Units

Displayed

Data List

Misfire Presses
Since First Fail

Engine
Misfire

Counts

0

0

DTC P0300

Total Misfire

Engine
Misfire

Counts

0

0

DTC P0300

Weak Cylinder

Engine
Misfire

Cylinder #

–

–

DTC
P0300,P0301,P0302,P0303,
P0304

Misfire Delay
Counter

Engine
Misfire

Counts

0

0

DTC
P0300,P0301,P0302,P0303,
P0304

ABS Rough
Road

Engine
Misfire

Value

Okey

Okey

DTC P1380,P1381

ABS Rough
Road Counts

Engine
Misfire

Counts

0

0

DTC P1380,P1381

B1 O2 Sensor
Ready

Engine
HO2S

Yes/No

Yes

Yes

General Discription and and
Operation, Fuel Control
HO2S. DTC P0135

B1S1 Status
(Bank1,Sensor1
)

Engine
HO2S

Rich/Lean

–

–

General Discription and and
Operation, Fuel Control
HO2S

B1S1 O2
Sensor
(Bank1,Sensor1
)

Engine
HO2S

mV

50 – 950
changing quickly

50 – 950
changing quickly

General Discription and and
Operation, Fuel Control
HO2S

B1S2 O2
Sensor
(Bank1,Sensor2
)

Engine
HO2S

mV

100 – 700
changing slowly

100 – 700
changing slowly

General Discription and and
Operation, Fuel Metering
System

B1S2 O2S
Warm Up Time

Engine
HO2S

sec

0

–

General Discription and and
Operation, Catalyst Monitor
Heated Oxygen Sensor

Fuel Trim
Learned

Engine
HO2S

Yes/No

Yes

Yes

Diagnosis, Fuel Trim Monitor

Fuel Trim Cell

Engine
HO2S

Cell No.

18

2 or 6

Diagnosis, Fuel Trim Cell
Diagnostic Weights

B1 Long Fuel
Trim 

Engine
HO2S

%

–

–

DTC P0171,P0172

B2 Short Fuel
Trim

Engine
HO2S

%

–

–

DTC P0171,P0172

Power
Enrichment

Engine
HO2S

Yes/No

No

No

General Discription and and
Operation, Acceleration
Mode

Braodcast Code

–

2.2 letter

–

–

–

6E1–83

RODEO Y22SE 2.2L ENGINE DRIVEABILITY AND EMISSION

NO MALFUNCTION INDICATOR LAMP (MIL)

060R100023

Circuit Description

The ”Check Engine” lamp (MIL) should always be
illuminated and steady with the ignition ON and the
engine stopped. Ignition feed voltage is supplied to the
MIL bulb through the meter fuse. The powertrain control
module (PCM) turns the MIL ON by grounding the MIL
driver circuit.

Diagnostic Aids

An intermittent MIL may be caused by a poor connection,
rubbed–through wire insulation, or a wire broken inside
the insulation. Check for the following items:

D

Inspect the PCM harness and connections for
improper mating, broken locks, improperly formed or
damaged terminals, poor terminal–to–wire
connection, and damaged harness.

D

If the engine runs OK, check for a faulty light bulb, an
open in the MIL driver circuit, or an open in the
instrument cluster ignition feed.

D

If the engine cranks but will not run, check for an open
PCM ignition or battery feed, or a poor PCM to engine
ground.

Test Description

Number(s) below refer to the step number(s) on the
Diagnostic Chart:
2. A ”No MIL” condition accompanied by a no–start

condition suggests a faulty PCM ignition feed or
battery feed circuit.

 9. Using a test light connected to B+, probe each of

the PCM ground terminals to ensure that a good
ground is present. Refer to PCM Terminal End View
for terminal locations of the PCM ground circuits.

12. In this step, temporarily substitute a known good

relay for the PCM relay. The horn relay is nearby,
and it can be verified as ”good” simply by honking
the horn. Replace the horn relay after completing
this step.