Page 1925 of 2870

EN(H4DOTC)-292
ENGINE (DIAGNOSTIC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
Step Check Yes No
1 CHECK HARNESS BETWEEN ECM AND OIL
FLOW CONTROL SOLENOID VALVE.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from ECM and oil
flow control solenoid valve.
3) Measure the resistance between ECM and
oil flow control solenoid valve.
Connector & terminal
(B134) No. 19 — (E37) No. 1:
(B134) No. 29 — (E37) No. 2:Is the resistance less than 1
Ω?Go to step 2.Repair open circuit
in harness
between ECM and
oil flow control
solenoid valve
connector.
N
OTE:
In this case, repair
the following:
Open circuit in
harness between
ECM and oil flow
control solenoid
valve connector
Poor contact in
coupling connector
2 CHECK HARNESS BETWEEN ECM AND OIL
FLOW CONTROL SOLENOID VALVE.
Measure the resistance between ECM and oil
flow control solenoid valve.
Connector & terminal
(E37) No. 1 — Engine ground:
(E37) No. 2 — Engine ground:Is the resistance more than 1
MΩ?Go to step 3.Repair short circuit
between ECM and
oil flow control
solenoid valve
connector.
3 CHECK OIL FLOW CONTROL SOLENOID
VALVE.
1) Remove the oil flow control solenoid valve
connector.
2) Measure the resistance between oil flow
control solenoid valve terminals.
Te r m i n a l s
No. 1 — No. 2:Is the resistance 6 — 12 Ω? Repair poor con-
tact in ECM and oil
flow control sole-
noid valve.Replace the oil
flow control sole-
noid valve.
to ME(H4DOTC)-
68, Camshaft.>
Page 1926 of 2870
EN(H4DOTC)-293
ENGINE (DIAGNOSTIC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
CX:DTC P2093 OCV SOLENOID VALVE SIGNAL A CIRCUIT SHORT (BANK 2)
DTC DETECTING CONDITION:
Two consecutive driving cycles with fault
TROUBLE SYMPTOM:
Erroneous idling
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode
ERATION, Clear Memory Mode.> and Inspection Mode
spection Mode.>.
WIRING DIAGRAM:
EN-02350
F61
: LHD
E2
B134B134
E37 ECM
29 2 1
4
3
B62
F45
RHD
RHD
LHD LHD
RHD
RHD
LHD LHD
: LHD
: RHD
B22
E37
F61
12
F45
B22
: RHD
19
125678
131415169101112
34
17181920
OIL FLOW CONTROL
SOLENOID VALVE LH
56 7
82 1
94 310
24 22 23 25 11 12 13 14 15
26 27
2816 17
18 19 20 21
33 34 29
32 30 31
12345678910111213141516
F44
12345678
B61
F44
: LHD
E3
: RHD
8
6
Page 1927 of 2870

EN(H4DOTC)-294
ENGINE (DIAGNOSTIC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
Step Check Yes No
1 CHECK HARNESS BETWEEN ECM AND OIL
FLOW CONTROL SOLENOID VALVE.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from ECM and oil
flow control solenoid valve.
3) Measure the resistance between ECM and
oil flow control solenoid valve.
Connector & terminal
(B134) No. 19 — (E37) No. 1:
(B134) No. 29 — (E37) No. 2:Is the resistance less than 1
Ω?Go to step 2.Repair open circuit
in harness
between ECM and
oil flow control
solenoid valve
connector.
N
OTE:
In this case, repair
the following:
Open circuit in
harness between
ECM and oil flow
control solenoid
valve connector
Poor contact in
coupling connector
2 CHECK HARNESS BETWEEN ECM AND OIL
FLOW CONTROL SOLENOID VALVE.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from ECM and oil
flow control solenoid valve.
3) Measure the resistance between ECM and
oil flow control solenoid valve.
Connector & terminal
(E37) No. 1 — Engine ground:
(E37) No. 2 — Engine ground:Is the resistance more than 1
MΩ?Go to step 3.Repair short circuit
between ECM and
oil flow control
solenoid valve
connector.
3 CHECK OIL FLOW CONTROL SOLENOID
VALVE.
1) Remove the oil flow control solenoid valve
connector.
2) Measure the resistance between oil flow
control solenoid valve terminals.
Te r m i n a l s
No. 1 — No. 2:Is the resistance 6 — 12 Ω? Repair poor con-
tact in ECM and oil
flow control sole-
noid valve.Replace the oil
flow control sole-
noid valve.
to ME(H4DOTC)-
68, Camshaft.>
Page 1929 of 2870

EN(H4DOTC)-296
ENGINE (DIAGNOSTIC)
General Diagnostic Table
*1: Check ignition coil & ignitor ASSY and spark plug.
*2: Indicate the symptom occurring only in cold temperatures.
*3: Ensure the secure installation.
*4: Check fuel injector, fuel pressure regulator and fuel filter.
*5: Inspect air leak in air intake system.
*6: Adjust accelerator cable. 6. Surging1) Manifold absolute pressure sensor
2) Mass air flow and intake air temperature sensor
3) Engine coolant temperature sensor (*2)
4) Crankshaft position sensor (*3)
5) Camshaft position sensor (*3)
6) Fuel injection parts (*4)
7) Throttle position sensor
8) Fuel pump and fuel pump relay
7. Spark knock1) Manifold absolute pressure sensor
2) Mass air flow and intake air temperature sensor
3) Engine coolant temperature sensor
4) Knock sensor
5) Fuel injection parts (*4)
6) Fuel pump and fuel pump relay
8. After burning in exhaust system1) Manifold absolute pressure sensor
2) Mass air flow and intake air temperature sensor
3) Engine coolant temperature sensor (*2)
4) Fuel injection parts (*4)
5) Fuel pump and fuel pump relay Symptom Problem parts
Page 1945 of 2870
FU(H4DOTC 2.5)-15
FUEL INJECTION (FUEL SYSTEM)
Intake Manifold
(6) Place the power steering pump on the right
side wheel apron.
12) Disconnect the emission hose from the PCV
valve.
13) Disconnect the engine coolant hoses from the
throttle body.
14) Disconnect the brake booster hose.15) Disconnect the pressure hose from the intake
duct.
16) Disconnect the engine harness connectors
from the bulkhead harness connectors.
17) Disconnect the connectors from the engine cool-
ant temperature sensor (A), oil pressure switch (B)
and crankshaft position sensor (C).
FU-00021
FU-00022
FU-01074
FU-00023
FU-00024
FU-00025
FU-00026
(A)
(B)
(C)
FU-00027
Page 1946 of 2870
FU(H4DOTC 2.5)-16
FUEL INJECTION (FUEL SYSTEM)
Intake Manifold
18) Disconnect the knock sensor connector.
19) Disconnect the connector from the camshaft
position sensor.
20) Disconnect the connector from the ignition coil.
RH SIDE
LH SIDE
21) Disconnect the engine harness fixed by clip (A)
from the bracket. RH SIDE
LH SIDE
22) Disconnect the fuel delivery hose, return hose
and evaporation hose.
CAUTION:
Do not spill fuel.
Catch fuel from hoses in a container or cloth.
23) Remove the bolts which secure the intake man-
ifold to the cylinder heads.
24) Remove the intake manifold.
FU-00028
FU-01038
FU-01307
FU-01308
FU-01309 (A)
FU-01310
(A)
FU-00032
FU-01039
Page 1947 of 2870
FU(H4DOTC 2.5)-17
FUEL INJECTION (FUEL SYSTEM)
Intake Manifold
B: INSTALLATION
1) Install the intake manifold onto cylinder heads.
NOTE:
Always use new gaskets.
Tightening torque:
25 N·m (2.5 kgf-m, 18.1 ft-lb)
2) Connect the fuel delivery hose, return hose and
evaporation hose.
3) Connect the connector to the oil pressure switch
(B), crankshaft position sensor (C) and engine cool-
ant temperature sensor (A).4) Connect the connector to the knock sensor.
5) Connect the connector to the camshaft position
sensor.
6) Connect the connector to the ignition coil.
7) Connect the engine harness with clip (A) to the
bracket.
RH SIDE
FU-01039
FU-00032
(A)
(B)
(C)
FU-00027
FU-00028
FU-01038
FU-00030
FU-01309 (A)
Page 2028 of 2870

EN(H4DOTC 2.5)-4
ENGINE (DIAGNOSTIC)
Check List for Interview
2. CHECK LIST No. 2
Check the following items about the vehicle’s state when malfunction indicator light turns on.
NOTE:
Use copies of this page for interviewing customers.
a) Other warning lights or indicators turn on. ❏ Ye s / ❏ No
❏ Low fuel warning light
❏ Charge indicator light
❏ AT diagnostic indicator light
❏ ABS Warning Light
❏ Oil pressure indicator light
b) Fuel level
Lack of gasoline: ❏ Yes / ❏ No
Indicator position of fuel gauge:
Experienced running out of fuel: ❏ Ye s / ❏ No
c) Intentional connecting or disconnecting of harness connectors or spark plug cords: ❏ Yes / ❏ No
What:
d) Intentional connecting or disconnecting of hoses: ❏ Ye s / ❏ No
What:
e) Installing of other parts except genuine parts: ❏ Ye s / ❏ No
What:
Where:
f) Occurrence of noise: ❏ Yes / ❏ No
From where:
What kind:
g) Occurrence of smell: ❏ Yes / ❏ No
From where:
What kind:
h) Intrusion of water into engine compartment or passenger compartment: ❏ Yes / ❏ No
i) Troubles occurred
❏ Engine does not start
❏ Engine stalls during idling
❏ Engine stalls while driving
❏ Engine speed decreases
❏ Engine speed does not decrease
❏ Rough idling
❏ Poor acceleration
❏ Back fire
❏ After fire
❏ Does not shift
❏ Excessive shift shock