Vacuum Hoses And Connections Test - Honda Civic 2002-2003 Service Manual

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•
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Is there continuity?
YES~Go
to step 28.
NO~Replace the EVAP canister vent shut valve (AI
and o-ring (8) .•
28. Disconnect ECM connector E (31 PI.
29. Check for continuity between EVAP canister vent
solenoid valve 2P connector terminal No.2 and
body ground.
EVAP CANISTER VENT SHUT
VALVE 2P CONNECTOR
=
Wire side of female terminals
Is there continuity?
YES~Repair
short in the wire between the EVAP
canister vent shut valve and the ECM (E21) .•
NO~Update
the ECM if it does not have the latest
software, or substitute a known-good ECM, then
recheck (see page 11-6). If the symptom/indication
goes away with a known-good ECM, replace the
original ECM .•
Vacuum Hoses and Connections Test
30. Do the fuel tank vapor control valve test (see page
11-187).
Is the fuel tank vapor control valve OK?
YES~Gotostep31.
NO~Replace
the fuel tank vapor control valve .•
31. Tighten the fuel cap 3 "clicks", then monitor the
FTPsensor readings with the Honda PGM Tester.
32. Start the engine, and let it idle for 5 minutes.
33. Check the FTP sensor readings.
Is the reading above 0.5 kpa (4 mm Hg, 0.16 in.
Hg) pressure, or about
3 V?
YES~Update
the ECM if it does not have the latest
software, or substitute a known-good ECM, then
recheck (see page 11-6). If the symptom/indication
goes away with a known-good ECM, replace the
original ECM .•
NO~Check
the following parts for leaks:.
Fuel tank (A)
Fuel fill cap (8)
Fuel fill pipe (C)
Fuel tank vapor control valve (D)
Fuel tank vapor recirculation valve (E)
Fuel tank vapor recirculation tube (F)
Fuel tank vapor signal tube (G)
Fuel tank vapor control vent tube (H)
FTPsensor
(J)
- Repair or replace any leaking parts.
11-179