Honda Civic 1998 Service Manual page 371

Emission Control System
{ F r o m p a g e 1 1 - 1 8 1 }
C h e c k t o r a s h o r t i n t h e w i r e
IPTANK line):
M e a s u r e v o l t a g e b e t w e e n t h e
fueltank pressure sensor 3P con-
nector No. 3 terminal and No. 2
r e r m t n a t ,
ls there approx. 5 V?
Check for a Short in the wire
(PTANK line):
1. Turn the ignition switch OFF.
2. Disconnect the ECM/PCM con
nector D (16P).
3. Check for continuity between
the fuel tank pressure sensor
3P connector No. 3 terminals
and body ground.
Reoair Short in the wire between
the fueltank oressurc sensor and
ECM/PCM tD15).
Sub3titut6 a known-good ECM/
PCM and recheck. ll symptom/
indication goes away, replace the
orisinal ECM/PCM.
Evaporative Emission Controls (cont'dl
\
FUEL TANK
PRESSURE SENSOR
3P CONNECTOR {C7921
PTANK
(LT GRN)
sG2
{GRN/BLK)
Wire side of female terminals
11 -1 8 2