1997 HONDA CIVIC Workshop Manual

Page 161 of 2189

HONDA CIVIC 1997 6.G Workshop Manual VTEC Control SYstem
The scan tool indicates Diagnostic Trouble Code {DTC) Pl259:
VTEC Solenoid Valve circuit
Refer to page 1l-38 through 11 55 before troubleshooting
Troubleshooting Flowchart
YES
A p

Page 162 of 2189

HONDA CIVIC 1997 6.G Workshop Manual VTEC Control System
Troubleshooting Flowchart (cont,d)
VTEC PRESSURE SWITCH 2PCONNECTOR
Wire side of temaleterminals
OIL PRESSURE GAUGE(Comm.rcially avail.bte)
GAUGE JOINT ADAPTERSNAP.ON MT26.1710 x 1

Page 163 of 2189

HONDA CIVIC 1997 6.G Workshop Manual (From page 6-52)
Test the VTEC Solenoid Valve:
1. Turn the ignition switch OFF
2. Disconnect the VTEC solenoid
valve 1P connector,
3. Attach the batterY Posrtrveterminal to the VTEC solenoid
valve ter

Page 164 of 2189

HONDA CIVIC 1997 6.G Workshop Manual VTEC Solenoid ValveVTEC Rocker Arms
a
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Inspection
1. Remove the VTEC solenoid valve assembly fromthe cylinder head. and check the VTEC solenoidvalve filter for clogging.
. lf there is clogging, rep

Page 165 of 2189

HONDA CIVIC 1997 6.G Workshop Manual Remove the cylinder head cover.
NOTE: Refer to page 6-88 when installing the cylin-
der head cover.
Push the mid rocker arm on the No. 1 cylinder man-
ually.
Check that the mid rocker arm moves indepe

Page 166 of 2189

HONDA CIVIC 1997 6.G Workshop Manual VTEC Rocker Arms
4.
Inspection Using Special Tools (cont,dl
Loosen the valve on the regulator and apply thespecified air pressure.
Specified Air Pressuro:
250 kPa {2.5 kgtlcm,, 36 psil- 490 kPa {5.0 k

Page 167 of 2189

HONDA CIVIC 1997 6.G Workshop Manual Valve Glearance
Adjustment
NOTE:
. Valves should be adjusted only when the cylinder
head temperaturs is less than 100F (38C)
. After adjusting, retorque the crankshaft pulley bolt to
177 N.m (18.0

Page 168 of 2189

HONDA CIVIC 1997 6.G Workshop Manual Valve Clearance
I
I
I
Adjustment {contd)
5. Tighten the locknut and recheck clearance.Repeat adjustment if necessary.
Rotate the crankshaft 180. counterclockwise(camshaft pulley turns 90). The "Up"