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Nissan Primera P12. Manual - part 211

BASIC SERVICE PROCEDURE

EC-29

[YD (WITH EURO-OBD)]

BASIC SERVICE PROCEDURE

PFP:00018

Fuel Filter

EBS013JB

DESCRIPTION

A water draining cock is on the lower side and a priming pump for bleeding air is on the upper side.

AIR BLEEDING

Pump the priming pump to bleed air.

●

When air is bled completely, the pumping of the priming pump
suddenly becomes heavy. Stop the operation at that time.

●

If it is difficult to bleed air by the pumping of the priming pump
(the pumping of the priming pump does not become heavy), dis-
connect the fuel supply hose between the fuel filter and the fuel
gallery. Then, perform the operation described above, and make
sure that fuel comes out. (Use a pan, etc. so as not to spill fuel.
Do not let fuel get on engine and other parts.) After that, connect
the hose, then bleed air again.

●

Start engine and let it idle for at least 1 minute after performing
air bleeding.

WATER DRAINING

Remove the fuel filter, filter bracket, protector assembly from the dash panel as follows.

Remove the air cleaner case (upper), air duct assembly, and vacuum hose for brake booster (between the
vacuum pump and vacuum pipe).

CAUTION:

After the duct is removed, cover the opening with gum tape, etc. to prevent foreign object from
getting into the engine during the operation.

Remove the mounting nuts on the dash panel, then remove the fuel filter, filter bracket, and protector
assembly from the dash panel.

●

It is not necessary to disconnect the fuel hose.

Using a tool such as a pliers, loosen the water draining cock at
the bottom of the fuel filter.
Loosening drain cock four to five turns causes water to
start draining.
Do not remove drain cock by loosening it excessively.
If water dose not drain properly, move the priming up and down.

CAUTION:

When the water is drained, the fuel is also drained. Use a
pan, etc. to avoid fuel adherence to the rubber parts such as
the engine mount insulator.
Do not over-tighten the water draining cock. This will dam-
age the cock thread, resulting in water or fuel leak.

Bleed air of the fuel filter. Refer to

EC-29, "AIR BLEEDING"

Start the engine.

Fuel Pump Learning Value Clearing

EBS013JC

DESCRIPTION

In order to always keep optimum fuel pressure in fuel rail, the ECM controls fuel pump in high precision with
monitoring the signal of fuel rail pressure sensor.
Accordingly, the ECM always learns characteristic value of fuel pump. Fuel Pump Learning Value Clearing is
an operating to clear the value of the fuel pump learning.
It must be performed after the fuel pump is changed. When the ECM is replaced with brand new one, the Fuel
Pump Learning Value Clearing is not necessary to be performed. If the ECM to be replaced has the possibility
of learning the characteristic value of fuel pump, the Fuel Pump Learning Value Clearing is necessary to be
performed after the ECM has been replaced.

OPERATION PROCEDURE

NOTE:
Remove fuel pump without starting engine after performing Fuel Pump Learning Value Clearing.

MBIB0074E

SMA825B

EC-30

[YD (WITH EURO-OBD)]

BASIC SERVICE PROCEDURE

Turn ignition switch ON.

Select “PUMP LEARNT CLEAR” in “ACTIVE TEST” mode with
CONSULT-II.

Touch “CLEAR” and wait a few seconds.

Make sure that “CMPLT” is displayed on CONSULT-II screen.

MBIB0896E

MBIB0893E

MBIB0894E

ON BOARD DIAGNOSTIC (OBD) SYSTEM

EC-31

[YD (WITH EURO-OBD)]

ON BOARD DIAGNOSTIC (OBD) SYSTEM

PFP:00028

Introduction

EBS013JD

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.

: Applicable

—: Not applicable

The malfunction indicator (MI) on the instrument panel lights up when the same malfunction is detected in
three consecutive trips (Three trip detection logic).

Three Trip Detection Logic and One Trip Detection Logic

EBS013JE

On board diagnosis (OBD) system of this vehicle has “Three Trip Detection Logic” and “One Trip Detection
Logic”. For which logic each self-diagnosis corresponds with, refer to

EC-11, "INDEX FOR DTC"

“Trip” of “Three Trip Detection Logic” means a driving mode in which the self-diagnosis is performed while

driving.

THREE TRIP DETECTION LOGIC

When a malfunction is detected for the first time, 1st trip DTC is stored in the ECM memory. MI does not illumi-
nate at this stage. <1st trip>
When the same malfunction is detected again during the next driving, 2nd trip DTC is stored in the ECM mem-
ory and 1st trip DTC is cleared from the ECM memory. MI does not illuminate at this stage. <2nd trip>
When the same malfunction is detected again at the third driving, DTC and Freeze Frame Data are stored in
the ECM memory and 2nd trip DTC is cleared from the ECM memory. MI illuminates at the same time when
DTC is stored. <3rd trip>
In other words, DTC and Freeze Frame Data are stored and MI illuminates when the same malfunction occurs
in 3 consecutive trips.
This is called “Three Trip Detection Logic”.

ONE TRIP DETECTION LOGIC

When a malfunction is detected for the first time, DTC and Freeze Frame Data are stored in the ECM memory
and MI lights up. This is called “One Trip Detection Logic”. Some self-diagnoses will not illuminate MI when
DTC is stored. (Refer to

EC-31, "Emission-related Diagnostic Information"

.) 1st/2nd trip DTC is not stored for

one trip detection logic.

Emission-related Diagnostic Information

EBS013JF

EMISSION-RELATED DIAGNOSTIC INFORMATION ITEMS

X: Applicable —: Not applicable

Emission-related diagnostic information

ISO Standard

Diagnostic Trouble Code (DTC)

Mode 3 of ISO 15031-5

Freeze Frame data