Index Nissan Nissan Frontier D22 Pickup (1998-2004 year) - Service and Repair Manual

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Nissan Frontier D22. Manual - part 529

BASIC SERVICE PROCEDURE

EC-1219

[VG33ER]

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EC

●

Do not perform fuel pressure check with electrical system operating (i.e. lights, A/C etc.). Fuel
pressure gauge may indicate false readings due to varying engine loads and changes in manifold
vacuum.

1.

Release fuel pressure to zero.

2.

Install the inline fuel quick disconnect fitting between the con-
nection of the fuel feed hose (from tank) and the fuel hose (to
engine).

3.

Connect the fuel pressure test gauge (quick connect adapter
hose) to the quick disconnect fitting.

4.

Turn ignition switch ON and check for fuel leakage.

5.

Start engine and check for fuel leakage.

6.

Read the indication of fuel pressure gauge.

If results are unsatisfactory, perform Fuel Pressure Regulator Check.

Fuel Pressure Regulator Check

UBS00DRX

1.

Stop engine and disconnect fuel pressure regulator vacuum
hose from intake manifold.

2.

Plug intake manifold with a blind cap.

3.

Connect variable vacuum source to fuel pressure regulator.

4.

Start engine and read indication of fuel pressure gauge as vac-
uum is changed.

Fuel pressure should decrease as vacuum increases. If results
are unsatisfactory, replace fuel pressure regulator.

At idling:

With vacuum hose
connected

Approximately 235 kPa

(2.4 kg/cm

2

, 34 psi)

With vacuum hose
disconnected

Approximately 294 kPa

(3.0 kg/cm

2

, 43 psi)

WEC875

SEF928U

SEF718BA

EC-1220

[VG33ER]

ON BOARD DIAGNOSTIC (OBD) SYSTEM

ON BOARD DIAGNOSTIC (OBD) SYSTEM

PFP:00028

Introduction

UBS00DRY

The ECM has an on board diagnostic system, which detects malfunctions related to engine sensors or actua-
tors. The ECM also records various emission-related diagnostic information including:

The above information can be checked using procedures listed in the table below.

X: Applicable

—: Not applicable

*: 1st trip DTCs for self-diagnoses concerning SRT items cannot be shown on the GST display.

The malfunction indicator lamp (MIL) on the instrument panel lights up when the same malfunction is detected
in two consecutive trips (Two trip detection logic), or when the ECM enters fail-safe mode. (Refer to

.)

Two Trip Detection Logic

UBS00DRZ

When a malfunction is detected for the first time, 1st trip DTC and 1st trip Freeze Frame data are stored in the
ECM memory. The MIL will not light up at this stage. <1st trip>
If the same malfunction is detected again during the next drive, the DTC and Freeze Frame data are stored in
the ECM memory, and the MIL lights up. The MIL lights up at the same time when the DTC is stored. <2nd
trip> The “trip” in the “Two Trip Detection Logic” means a driving mode in which self-diagnosis is performed
during vehicle operation. Specific on board diagnostic items will cause the ECM to light up or blink the MIL,
and store DTC and Freeze Frame data, even in the 1st trip, as shown below.

X: Applicable

—: Not applicable

Emission-related diagnostic information

SAE Mode

Diagnostic Trouble Code (DTC)

Mode 3 of SAE J1979

Freeze Frame data

Mode 2 of SAE J1979

System Readiness Test (SRT) code

Mode 1 of SAE J1979

1st Trip Diagnostic Trouble Code (1st Trip DTC)

Mode 7 of SAE J1979

1st Trip Freeze Frame data

Test values and Test limits

Mode 6 of SAE J1979

Calibration ID

Mode 9 of SAE J1979

DTC

1st trip DTC

Freeze Frame

data

1st trip Freeze

Frame data

SRT code

Test value

CONSULT-II

×

×

×

×

×

—

GST

×

×*

×

—

×

×

Items

MIL

DTC

1st trip DTC

1st trip

2nd trip

1st trip

display-

ing

2nd trip

display-

ing

1st trip

display-

ing

2nd trip

display-

ing

Blinking

Lighting

up

Blinking

Lighting

up

Misfire (Possible three way catalyst
damage) — DTC: P0300 - P0306 is
being detected

×

—

—

—

—

—

×

—

Misfire (Possible three way catalyst
damage) — DTC: P0300 - P0306 is
being detected

—

—

×

—

—

×

—

—

One trip detection diagnosis (refer
to

—

×

—

—

×

—

—

—

Except above

—

—

—

×

—

×

×

—

ON BOARD DIAGNOSTIC (OBD) SYSTEM

EC-1221

[VG33ER]

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Emission-related Diagnostic Information

UBS00DS0

EMISSION-RELATED DIAGNOSTIC INFORMATION ITEMS

X: Applicable

—: Not applicable

Items

(CONSULT-II screen terms)

DTC*

1

*

2

SRT code

Test value/

Test limit

(GST only)

1st trip DTC*

1

Reference page

CONSULT-II

GST

NO DTC IS DETECTED. FUR-
THER TESTING MAY BE
REQUIRED.

P0000

—

—

—

—

HO2S1 HTR (B1)

P0031

×

×

×*

4

HO2S1 HTR (B1)

P0032

×

×

×*

4

SCB/V CONT SOL/V

P0034

—

—

×

HO2S2 HTR (B1)

P0037

×

×

×*

4

HO2S2 HTR (B1)

P0038

×

×

×*

4

HO2S1 HTR (B2)

P0051

×

×

×*

4

HO2S1 HTR (B2)

P0052

×

×

×*

4

HO2S2 HTR (B2)

P0057

×

×

×*

4

HO2S2 HTR (B2)

P0058

×

×

×*

4

MAF SEN/CIRCUIT

P0101

—

—

×

MAF SEN/CIRCUIT

P0102

—

—

—

MAF SEN/CIRCUIT

P0103

—

—

—

IAT SEN/CIRCUIT

P0112

—

—

—

IAT SEN/CIRCUIT

P0113

—

—

—

ECT SEN/CIRCUIT

P0117

—

—

—

ECT SEN/CIRCUIT

P0118

—

—

—

TP SEN/CIRCUIT

P0121

—

—

×

TP SEN/CIRCUIT

P0122

—

—

—

TP SEN/CIRCUIT

P0123

—

—

—

ECT SENSOR

P0125

—

—

×

IAT SENSOR

P0127

—

—

×

THERMSTAT FNCTN

P0128

—

—

×

HO2S1 (B1)

P0132

—

×

×

HO2S1 (B1)

P0133

×

×

×*

4

HO2S1 (B1)

P0134

—

×

×

HO2S2 (B1)

P0138

—

×

×

HO2S2 (B1)

P0139

×

×

×*

4

HO2S1 (B2)

P0152

—

×

×

HO2S1 (B2)

P0153

×

×

×*

4

HO2S1 (B2)

P0154

—

×

×

HO2S2 (B2)

P0158

—

×

×

HO2S2 (B2)

P0159

×

×

×*

4

FUEL SYS-LEAN-B1

P0171

—

—

×

FUEL SYS-RICH-B1

P0172

—

—

×

FUEL SYS-LEAN-B2

P0174

—

—

×

FUEL SYS-RICH-B2

P0175

—

—

×

EC-1222

[VG33ER]

ON BOARD DIAGNOSTIC (OBD) SYSTEM

FTT SENSOR

P0181

—

—

×

FTT SEN/CIRCUIT

P0182

—

—

×

FTT SEN/CIRCUIT

P0183

—

—

×

ENG OVER TEMP

P0217

—

—

×

SC FUNCTION

P0299

—

—

×

MULTI CYL MISFIRE

P0300

—

—

×

CYL1 MISFIRE

P0301

—

—

×

CYL2 MISFIRE

P0302

—

—

×

CYL3 MISFIRE

P0303

—

—

×

CYL4 MISFIRE

P0304

—

—

×

CYL5 MISFIRE

P0305

—

—

×

CYL6 MISFIRE

P0306

—

—

×

KNOCK SEN/CIRC-B1

P0327

—

—

—

KNOCK SEN/CIRC-B1

P0328

—

—

—

CKP SEN/CIRCUIT

P0335

—

—

×

CMP SEN/CIRCUIT

P0340

—

—

×

TW CATALYST SYS-B1

P0420

×

×

×*

4

TW CATALYST SYS-B2

P0430

×

×

×*

4

EVAP PURG FLOW/MON

P0441

×

×

×*

4

EVAP SMALL LEAK

P0442

×

×

×*

4

PURG VOLUME CONT/V

P0444

—

—

×

PURG VOLUME CONT/V

P0445

—

—

×

VENT CONTROL VALVE

P0447

—

—

×

EVAP SYS PRES SEN

P0452

—

—

×

EVAP SYS PRES SEN

P0453

—

—

×

EVAP GROSS LEAK

P0455

—

×

×

EVAP VERY SML LEAK

P0456

×*

3

×

×*

4

FUEL LEV SEN SLOSH

P0460

—

—

×

FUEL LEVEL SENSOR

P0461

—

—

×

FUEL LEVL SEN/CIRC

P0462

—

—

×

FUEL LEVL SEN/CIRC

P0463

—

—

×

VEH SPEED SEN/CIRC

P0500

—

—

×

ISC SYSTEM/CIRC

P0505

—

—

×

CLOSED TP SW/CIRC

P0510

—

—

×

A/T COMM LINE

P0600*

3

—

—

—

ECM

P0605

—

—

×

PNP SW/CIRC

P0705

—

—

×

ATF TEMP SEN/CIRC

P0710

—

—

×

VEH SPD SEN/CIR AT

P0720

—

—

×

ENGINE SPEED SIG

P0725

—

—

×

A/T 1ST GR FNCTN

P0731

—

—

×

A/T 2ND GR FNCTN

P0732

—

—

×

Items

(CONSULT-II screen terms)

DTC*

1

*

2

SRT code

Test value/

Test limit

(GST only)

1st trip DTC*

1

Reference page

CONSULT-II

GST

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