1999 NISSAN PRIMERA Electronic Repair Manual

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Page 473 of 2267

NISSAN PRIMERA 1999 Electronic Repair Manual 7. Align protrusions of fuel tubes with those of fuel injectors.
Insert fuel injectors straight into fuel tubes.
8. After properly inserting fuel injectors, check to make sure that
fuel tube protrusio

Page 474 of 2267

NISSAN PRIMERA 1999 Electronic Repair Manual Idle Speed/Ignition Timing/Idle Mixture Ratio
Adjustment
NCEC0028DIRECT IGNITION SYSTEM Ð HOW TO CHECK IDLE
SPEED AND IGNITION TIMING
NCEC0028S03Idle SpeedNCEC0028S0301IUsing CONSULT-II
Check idle sp

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NISSAN PRIMERA 1999 Electronic Repair Manual Idle Air Volume LearningNCEC0541DESCRIPTIONNCEC0541S01ªIdle Air Volume Learningº is an operation to learn the idle air vol-
ume that keeps each engine within the specific range. It must be
performed

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NISSAN PRIMERA 1999 Electronic Repair Manual 5. Turn ignition switch ªOFFº and wait at least 9 seconds.
6. Start the engine and let it to idle for at least 28 seconds.
7. Select ªIDLE AIR VOL LEARNº in ªWORK SUPPORTº mode.
8. Touch ªSTART

5. Turn ignition switch ªOFFº and wait at least 9 seconds.
6. Start the engine and let it to idle for at least 28 seconds.
7. Select ªIDLE AIR VOL LEARNº in ªWORK SUPPORTº mode.
8. Touch ªSTARTº and wait 20 seconds.
9. Make sure that ªCMPLTº is displayed on CONSULT-II screen.
If ªINCMPº is displayed, ªIdle Air Volume Learningº will not be
carried out successfully. In this case, find the cause of the
problem by referring to the NOTE below.
10. Rev up the engine two or three times. Make sure that idle
speed and ignition timing are close to or within specifications.
ITEM SPECIFICATION
Idle speed 700 50 rpm
Ignition timing 8É 5É BTDC
Without CONSULT-IINCEC0541S02021. Turn ignition switch ªONº and wait at least 1 second.
2. Turn ignition switch ªOFFº and wait at least 9 seconds.
3. Start the engine and warm it up to normal operating tempera-
ture.
4. Check that all items listed under the topic ªPRE-CONDITION-
INGº (previously mentioned) are in good order.
5. Turn ignition switch ªOFFº and wait at least 9 seconds.
6. Start the engine and let it to idle for at least 28 seconds.
7. Disconnect throttle position sensor harness connector (brown),
then re-connect it within 5 seconds.
8. Wait 20 seconds.
9. Make sure that idle speed is within specifications. If not, the
result will be incomplete. In this case, find the cause of the
problem by referring to the NOTE below.
10. Rev up the engine two or three times. Make sure that idle
speed and ignition timing are within specifications.
ITEM SPECIFICATION
Idle speed 700 50 rpm
Ignition timing 8É 5É BTDC
NOTE:
If idle air volume learning cannot be performed successfully,
proceed as follows:
1) Check that throttle valve is fully closed.
2) Check PCV valve operation.
3) Check that downstream of throttle valve is free from air
leakage.
4) Adjust closed throttle position switch and reset memory.
(Refer to Basic Inspection, EC-QG-72.)
5) When the above three items check out OK, engine com-
ponent parts and their installation condition are question-
able. Check and eliminate the cause of the problem.
6) If any of the following conditions occur after the engine
has started, eliminate the cause of the problem and per-
form ªIdle air volume learningº all over again:
NEF246A Throttle body
.Remove or install
throttle position
sensor harness
connector (brown)
IACV-AAC valve harness
connector
BASIC SERVICE PROCEDUREQG16I18DE
Idle Air Volume Learning (Cont'd)
EC-34

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NISSAN PRIMERA 1999 Electronic Repair Manual IEngine stalls.
IErroneous idle.
IBlown fuses related to IACV-AAC valve system.
BASIC SERVICE PROCEDUREQG16I18DE
Idle Air Volume Learning (Contd)
EC-35

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NISSAN PRIMERA 1999 Electronic Repair Manual IntroductionNCEC0029The 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

IntroductionNCEC0029The 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:
Diagnostic Trouble Code (DTC) Mode 3 of ISO15031-5
Freeze Frame data Mode 2 of ISO15031-5
System Readiness Test (SRT) code Mode 1 of ISO15031-5
1st Trip Diagnostic Trouble Code (1st Trip DTC) Mode 7 of ISO15031-5
1st Trip Freeze Frame data
Test values and Test limits Mode 6 of ISO15031-5
Calibration ID Mode 9 of ISO15031-5
The above information can be checked using procedures listed in the table below.
X: Applicable Ð: Not applicable
DTC 1st trip DTCFreeze Frame
data1st trip Freeze
Frame dataSRT code Test value
ECM*3 X X*1ÐÐÐÐ
CONSULT-II*4XXXXXÐ
GST*4 X X*2 X Ð X X
*1: When DTC and 1st trip DTC simultaneously appear on the display, they cannot be clearly distinguished from each other.
*2: 1st trip DTCs for self-diagnoses concerning SRT items cannot be shown on the GST display.
*3: In diagnostic test mode II (Self-diagnostic results), DTC is displayed on MI. DTC uses a set of four digit numbers.
*4: In SELF-DIAGNOSTIC RESULTS mode, DTC is displayed. DTC uses ªPº and a set of four digit numbers.
The malfunction indicator (MI) 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 EC-QG-81.)
Two Trip Detection LogicNCEC0030When a malfunction is detected for the first time, 1st trip DTC and 1st trip Freeze Frame data are stored in
the ECM memory. The MI 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 MI lights up. The MI lights up at the same time when the DTC is stored <2nd
trip>. The ªtripº in the ªTwo Trip Detection Logicº 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 MI,
and store DTC and Freeze Frame data, even in the 1st trip, as shown below.
X: Applicable Ð: Not applicable
ItemsMI DTC 1st trip DTC
1st trip 2nd trip
1st trip
displaying2nd trip
displaying1st trip
displaying2nd trip
displaying
BlinkingLighting
upBlinkingLighting
up
Misfire (Possible three way
catalyst damage)
Ð DTC: P0300 - P0304
(0300 - 0304) is being
detectedX ÐÐÐÐÐ X Ð
Misfire (Possible three way
catalyst damage)
Ð DTC: P0300 - P0304
(0300 - 0304) is being
detectedÐÐXÐÐXÐÐ
Fail-safe items (Refer to
EC-QG-81.)Ð X Ð Ð X*1 Ð X*1 Ð
Except above Ð ÐÐXÐX X X
*1: Except ªECMº.
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTIONQG16I18DE
Introduction
EC-36

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NISSAN PRIMERA 1999 Electronic Repair Manual Emission-related Diagnostic InformationNCEC0031DTC AND 1ST TRIP DTCNCEC0031S01The 1st trip DTC (whose number is the same as the DTC number) is displayed for the latest self-diagnostic
result obtained.

Emission-related Diagnostic InformationNCEC0031DTC AND 1ST TRIP DTCNCEC0031S01The 1st trip DTC (whose number is the same as the DTC number) is displayed for the latest self-diagnostic
result obtained. If the ECM memory was cleared previously, and the 1st trip DTC did not reoccur, the 1st trip
DTC will not be displayed. If a malfunction is detected during the 1st trip, the 1st trip DTC is stored in the ECM
memory. The MI will not light up (two trip detection logic). If the same malfunction is not detected in the 2nd
trip (meeting the required driving pattern), the 1st trip DTC is cleared from the ECM memory. If the same mal-
function is detected in the 2nd trip, both the 1st trip DTC and DTC are stored in the ECM memory and the MI
lights up. In other words, the DTC is stored in the ECM memory and the MI lights up when the same malfunc-
tion occurs in two consecutive trips. If a 1st trip DTC is stored and a non-diagnostic operation is performed
between the 1st and 2nd trips, only the 1st trip DTC will continue to be stored. For malfunctions that blink or
light up the MI during the 1st trip, the DTC and 1st trip DTC are stored in the ECM memory.
Procedures for clearing the DTC and the 1st trip DTC from the ECM memory are described in ªHOW TO
ERASE EMISSION-RELATED DIAGNOSTIC INFORMATIONº. Refer to EC-QG-44.
For malfunctions in which 1st trip DTCs are displayed, refer to EC-QG-42. These items are required by legal
regulations to continuously monitor the system/component. In addition, the items monitored non-continuously
are also displayed on CONSULT-II.
1st trip DTC is specified in Mode 7 of ISO15031-5. 1st trip DTC detection occurs without lighting up the MI
and therefore does not warn the driver of a problem. However, 1st trip DTC detection will not prevent the
vehicle from being tested, for example during Inspection/Maintenance (I/M) tests.
When a 1st trip DTC is detected, check, print out or write down and erase (1st trip) DTC and Freeze Frame
data as specified in ªWork Flowº procedure Step II, refer to page EC-QG-70. Then perform ªDTC Confirma-
tion Procedureº or ªOverall Function Checkº to try to duplicate the problem. If the malfunction is duplicated,
the item requires repair.
How to read DTC and 1st Trip DTCNCEC0031S0101DTC and 1st trip DTC can be read by the following methods.
1)
No Tools
The number of blinks of MI in the Diagnostic Test Mode II (Self-Diagnostic Results) Examples: 0340, 1320,
0705, 0750, etc.
These DTCs are controlled by NISSAN.
2)
With CONSULT-II
With GST
CONSULT-II or GST (Generic Scan Tool) Examples: P0340, P1320, P0705, P0750, etc.
These DTCs are prescribed by ISO15031-6.
(CONSULT-II also displays the malfunctioning component or system.)
I1st trip DTC No. is the same as DTC No.
IOutput of a DTC indicates a malfunction. However, Mode II and GST do not indicate whether the
malfunction is still occurring or has occurred in the past and has returned to normal.
CONSULT-II can identify malfunction status as shown below. Therefore, using CONSULT-II (if avail-
able) is recommended.
A sample of CONSULT-II display for DTC is shown below. DTC or 1st trip DTC of a malfunction is displayed
in SELF-DIAGNOSTIC RESULTS mode of CONSULT-II. Time data indicates how many times the vehicle was
driven after the last detection of a DTC.
If the DTC is being detected currently, the time data will be ª0º.
If a 1st trip DTC is stored in the ECM, the time data will be ª[1t]º.
NEF065A DTC
display1st trip
DTC
display
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTIONQG16I18DE
Emission-related Diagnostic Information
EC-37

Page 480 of 2267

NISSAN PRIMERA 1999 Electronic Repair Manual FREEZE FRAME DATA AND 1ST TRIP FREEZE FRAME DATANCEC0031S02The ECM records the driving conditions such as fuel system status, calculated load value, engine coolant
temperature, short term fuel trim, l

FREEZE FRAME DATA AND 1ST TRIP FREEZE FRAME DATANCEC0031S02The ECM records the driving conditions such as fuel system status, calculated load value, engine coolant
temperature, short term fuel trim, long term fuel trim, engine speed, vehicle speed and absolute pressure
sensor at the moment a malfunction is detected.
Data which are stored in the ECM memory, along with the 1st trip DTC, are called 1st trip freeze frame data.
The data, stored together with the DTC data, are called freeze frame data and displayed on CONSULT-II or
GST. The 1st trip freeze frame data can only be displayed on the CONSULT-II screen, not on the GST. For
details, see EC-QG-58.
Only one set of freeze frame data (either 1st trip freeze frame data or freeze frame data) can be stored in the
ECM. 1st trip freeze frame data is stored in the ECM memory along with the 1st trip DTC. There is no prior-
ity for 1st trip freeze frame data and it is updated each time a different 1st trip DTC is detected. However, once
freeze frame data (2nd trip detection/MI on) is stored in the ECM memory, 1st trip freeze frame data is no
longer stored. Remember, only one set of freeze frame data can be stored in the ECM. The ECM has the fol-
lowing priorities to update the data.
Priority Items
1Freeze frame data Misfire Ð DTC: P0300 - P0304 (0300 - 0304)
Fuel Injection System Function Ð DTC: P0171 (0171), P0172 (0172)
2 Except the above items
3 1st trip freeze frame data
For example, the EGR malfunction (Priority: 2) was detected and the freeze frame data was stored in the 2nd
trip. After that when the misfire (Priority: 1) is detected in another trip, the freeze frame data will be updated
from the EGR malfunction to the misfire. The 1st trip freeze frame data is updated each time a different mal-
function is detected. There is no priority for 1st trip freeze frame data. However, once freeze frame data is
stored in the ECM memory, 1st trip freeze data is no longer stored (because only one freeze frame data or
1st trip freeze frame data can be stored in the ECM). If freeze frame data is stored in the ECM memory and
freeze frame data with the same priority occurs later, the first (original) freeze frame data remains unchanged
in the ECM memory.
Both 1st trip freeze frame data and freeze frame data (along with the DTCs) are cleared when the ECM
memory is erased. Procedures for clearing the ECM memory are described in ªHOW TO ERASE EMISSION-
RELATED DIAGNOSTIC INFORMATIONº. Refer to EC-QG-44.
SYSTEM READINESS TEST (SRT) CODENCEC0031S03System Readiness Test (SRT) code is specified in Mode 1 of ISO15031-5. It indicates whether the self-diag-
nostic tests for non-continuously monitored items have been completed or not.
Inspection/Maintenance (I/M) tests of the on board diagnostic (OBD) II system may become the legal require-
ments in some states/areas. All SRT codes must be set in this case. Unless all SRT codes are set, conduct-
ing the I/M test may not be allowed.
SRT codes are set after self-diagnosis has been performed one or more times. This occurs regardless of
whether the diagnosis is in ªOKº or ªNGº, and whether or not the diagnosis is performed in consecutive trips.
The following table lists the four SRT items (14 test items) for the ECM used in P11 models.
SRT items Self-diagnostic test items
Catalyst monitoringIThree way catalyst function P0420 (0420)
Oxygen sensor monitoringIHeated oxygen sensor 1 (front) (Circuit) P0130 (0130)
IHeated oxygen sensor 1 (front) (Lean shift monitoring) P0131 (0131)
IHeated oxygen sensor 1 (front) (Rich shift monitoring) P0132 (0132)
IHeated oxygen sensor 1 (front) (Response monitoring) P0133 (0133)
IHeated oxygen sensor 1 (front) (High voltage) P0134 (0134)
IHeated oxygen sensor 2 (rear) (Min. voltage monitoring) P0137 (0137)
IHeated oxygen sensor 2 (rear) (Max. voltage monitoring) P0138 (0138)
IHeated oxygen sensor 2 (rear) (Response monitoring) P0139 (0139)
IHeated oxygen sensor 2 (rear) (High voltage) P0140 (0140)
Oxygen sensor heater monitoringIHeated oxygen sensor 1 (front) heater P0135 (0135)
IHeated oxygen sensor 2 (rear) heater P0141 (0141)
EGR system monitoring
(If so equipped)IEGR function (Close) P0400 (0400)
IEGR function (Open) P1402 (1402)
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTIONQG16I18DE
Emission-related Diagnostic Information (Cont'd)
EC-38

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