Nissan Maxima Service and Repair Manual: P0078, P0084 EVT control magnet retarder
Description
Exhaust valve timing control magnet retarder (1) controls the shut/ open timing of the exhaust valve by ON/OFF pulse duty signals sent from the ECM.
The longer pulse width retards valve timing.
The shorter pulse width advances valve timing.
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.
- Turn ignition switch OFF and wait at least 10 seconds.
- Turn ignition switch ON.
- Turn ignition switch OFF and wait at least 10 seconds.
2.PERFORM DTC CONFIRMATION PROCEDURE
- Start engine and let it idle for 5 seconds.
- Check 1st trip DTC.
Diagnosis Procedure
Regarding Wiring Diagram information
1.CHECK EXHAUST VALVE TIMING (EVT) CONTROL MAGNET RETARDER POWER SUPPLY CIRCUIT
- Turn ignition switch OFF.
- Disconnect EVT control magnet retarder harness connector.
- Turn ignition switch ON.
- Check the voltage between EVT control magnet retarder harness connector and ground.
2.CHECK EVT CONTROL MAGNET RETARDER OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
- Turn ignition switch OFF.
- Disconnect ECM harness connector.
- Check the continuity between EVT control magnet retarder harness connector and ECM harness connector.
- Also check harness for short to ground and short to power.
3.CHECK EVT CONTROL MAGNET RETARDER
4.REPLACE EVT CONTROL MAGNET RETARDER
- Replace malfunctioning EVT control magnet retarder
5.CHECK INTERMITTENT INCIDENT
Component Inspection
1.CHECK EXHAUST VALVE TIMING CONTROL MAGNET RETARDER
- Turn ignition switch OFF.
- Disconnect exhaust valve timing control magnet retarder harness connector.
- Check resistance between exhaust valve timing control magnet retarder terminals as per the following.
2.REPLACE EXHAUST VALVE TIMING CONTROL MAGNET RETARDER
- Replace malfunctioning exhaust valve timing control magnet retarder
P0075, P0081 IVT control solenoid valve
Description
Intake valve timing control solenoid valve is activated by ON/OFF
pulse duty (ratio) signals from the ECM.
The intake valve timing control solenoid valve changes the oil
amount ...
P0101 MAF sensor
Description
The mass air flow sensor (1) is placed in the stream of intake air. It
measures the intake flow rate by measuring a part of the entire
intake flow. The mass air flow sensor co ...
Other materials:
P0014, P0024 EVT control
DTC Logic
DTC DETECTION LOGIC
NOTE:
If DTC P0014 or P0024 is displayed with DTC P0078, P0084 first
perform trouble diagnosis for DTC
P0078, P0084. Refer to EC-180, "DTC Logic".
If DTC P0014 or P0024 is displayed with DTC P1078, P1084 first
perform trouble diagn ...
Rear seat
Exploded View - Fixed Seatback
Headrest
Headrest holder (free)
Headrest holder (locked)
Bumper
Seatback assembly
Seatback trim
Seatback pad
Seat cushion trim
Seat cushion pad
Seat cushion wire cover
Seat cushion lock
Seat cushion assembly
Removal and Installati ...
How to read the displayed lines
Guiding lines which indicate the vehicle width
and distances to objects with reference to the
vehicle body line A are displayed on the monitor.
Distance guide lines
Indicate distances from the vehicle body.
Red line 1 : approx. 1.5 ft (0.5 m)
Yellow line 2 : approx. 3 ft (1 m)
Green ...
Nissan Maxima Owners Manual
- Illustrated table of contents
- Safety-Seats, seat belts and supplemental restraint system
- Instruments and controls
- Pre-driving checks and adjustments
- Monitor, climate, audio, phone and voice recognition systems
- Starting and driving
- In case of emergency
- Appearance and care
- Do-it-yourself
- Maintenance and schedules
- Technical and consumer information
Nissan Maxima Service and Repair Manual
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