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DTC P2146, P2149 FUEL INJECTOR POWER SUPPLY
EC-1383
[YD (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
M
A
EC
DTC P2146, P2149 FUEL INJECTOR POWER SUPPLY PFP:16600
Component Description BBS00257
The fuel injector is a small, precise solenoid valve. When the ECM
supplies a ground to the fuel injector circuit, the coil in the fuel injec-
tor is energized. The energized coil pulls the needle valve back and
allows fuel to flow through the fuel injector into the cylinder. The
amount of fuel injected depends upon the injection pulse duration.
Pulse duration is the length of time the fuel injector remains open.
The ECM controls the injection pulse duration based on engine fuel
needs.
CONSULT-II Reference Value in Data Monitor Mode BBS00258
Specification data are reference values.
On Board Diagnosis Logic BBS00259
DTC Confirmation Procedure BBS0025A
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
TESTING CONDITION
Before performing the following procedure, confirm the ambient temperature is more than -20°C (-4°F).
WITH CONSULT-II
1. Turn ignition switch ON.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Start engine and let it idle for at least 5 seconds.
4. If 1st trip DTC is detected, go to EC-1386, "
Diagnostic Proce-
dure" .
WITH GST
Follow the procedure “WITH CONSULT-II” above.
PBIB0465E
MONITOR ITEM CONDITION SPECIFICATION
MAIN INJ WID
● Engine: After warming up
● Shift lever: Neutral position
● Idle speed
No load 0.68 - 0.78 msec
Blower fan switch: ON
Rear window defogger switch: ON
0.78 - 0.88 msec
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P2146
2146
No. 1 and 4 cylinder fuel
injector power supply cir-
cuit open
An improper voltage signal is sent to ECM
through No. 1 and 4 cylinder fuel injector.
● Harness or connectors
(The fuel injector circuit is open.)
P2149
2149
No. 2 and 3 cylinder fuel
injector power supply cir-
cuit open
An improper voltage signal is sent to ECM
through No. 2 and 3 cylinder fuel injector.
SEF817Y
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