Nissan Sentra Service Manual: Symptom diagnosis
On board refueling vapor recovery(ORVR)
Component Function Check
1.CHECK ORVR FUNCTION
Check whether the following symptoms are present.
Fuel odor from EVAP canister is strong
Cannot refuel/Fuel odor from the fuel filler opening is ...
Engine control system
Symptom Table
SYSTEM — BASIC ENGINE CONTROL SYSTEM
1 - 6: The numbers refer to the order of inspection.
(continued on next table)
SYSTEM — ENGINE MECHANICAL & OTHER
...
Other materials:
P0846 Transmission fluid pressure SEN/SW B
DTC Logic
DTC DETECTION LOGIC
DTC
CONSULT screen terms
(Trouble diagnosis content)
DTC detection condition
Possible causes
P0846
TRANSMISSION FLUID
PRESSURE SEN/SW B
(Transmission Fluid Pressure
Sensor/Switch B Circuit
Range/Performance)
The detection ...
Mixture ratio self-learning value
clear
Description
This describes how to erase the mixture ratio self-learning value. For the
actual procedure, follow the instructions
in “Diagnosis Procedure”.
Work Procedure
1.START
With CONSULT
Start engine and warm it up to normal operating temperature.
Select “SELF-LEARNI ...
P0300, P0301, P0302, P0303, P0304 Misfire
DTC Logic
DTC DETECTION LOGIC
When a misfire occurs, engine speed will fluctuate. If the engine speed
fluctuates enough to cause the crankshaft
position (CKP) sensor (POS) signal to vary, ECM can determine that a misfire is
occurring.
Sensor
Input signal to ECM
ECM function
...
