Vtec Solenoid Valve - Honda Civic Service Manual

VTEC Control System
Troubleshooting Flowchart (cont,d)
VTEC PRESSURE SWITCH 2P
CONNECTOR
Wire side of temale
terminals
OIL PRESSURE GAUGE
(Comm.rcially avail.bte)
GAUGE JOINT ADAPTER
SNAP.ON MT26.17
10 x 1.0 ftm
. Use new washer when
installing the sealing bott.
N O T E : K e e p m e a s u r i n g t i m e a s s h o r r a s
possible because engine is running witn no
load lless than one minute).
6-52
(
VTEC SOLENOID VALVE lP
CONNECTOF
Ir------r I
lLl.ll-r
I
I
I
t
Terminal side of
male terminal
I
(From page 6-5l l
(To page 6-53)
Test tha VTEC P.es3uro Switch
Wi.e:
Measure voltage across the VTEC
pressure switch 2P connector.
Ropair opon in the wiro batwoen
VIEC pr...urc switch and G lot .
lf the wiro is OK, 3ubltitutr a
known-good ECM and rochack.
ls there battery voltage?
Test the VTEC Solenoid V.tve:
1. Turn the ignition switch OFF.
2. Disconnect the VTEC solenoid
valve 1P connector.
3. Check for continuity between
t h e V T E C s o l e n o i d v a l v e 1 P
connector terminal No, I and
body ground.
ls there 14 - 30 O?
Te3t the VTEC Sotonoid Vatve:
'1. Remove
the VTEC pressure
switch and install the special
tool as shown. then reinstall
the VTEC pressure switch.
2. Reconnect the VTEC solenoid
valve 1P connector and VTEC
pressure switch 2P connector,
3. Connect the tachometer (see
s e c t i o n 1 l ) .
4. Start the engine.
5 . W a r m u p e n g i n e t o n o r m a l
operatrng temperature (cool-
ing fan comes on).
6. Check oil pressure at engine
s p e e d o f 1 , 0 0 0 , 3 , 0 0 0 a n d
5,000 rpm.
ls pressure below 49 kPa
(0.5 kgflcm,,7 psi)?
Inipoct thg VTEC aolenoid valve
l3ee P8go 6-54).
I