Honda Civic 2002-2003 Service Manual page 391

EVAPSystem
OTC Troubleshooting (cont'd)
31. While monitoring FTP sensor voltage with the
Honda PGM Tester, or measuring voltage between
ECM connector terminals E4 and E14, slowly pump
the vacuum pump.
ECM CONNECTOR E 131PI
SG3 (PNK)
1 2 1 3 4 5 6 7 1 J 8 9
':L VVVV1141516/118V120 21
22231241
L
~
271/129130 31
FTP{LTGRNI
Wire side of female terminals
32. Continue to pump vacuum until the voltage drops
to about 1.5 V. Make sure the engine coolant
temperature is still above 95°F (35°C) and your
vacuum pump has no leak.
33. Monitor the voltage for 20 seconds.
Does the voltage drop 1.5V and hold for at least
20 seconds?
YES-Inspect the EVAP canister vent shut valve
line and connections .•
NO-Go to step 34.
34. Turn the ignition switch OFF.
35. Disconnect the quick-connect fitting IA) from the
EVAP canister, and plug the canister port (B).
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A973X.
~
041-
T.,,.,..,._
xxxxx
36. Turn the ignition switch ON (II).
11-184
37. While monitoring FTPsensorvoltagewiththe
Honda PGM Tester, or measuring voltage between
ECM connectorterminals E4 and E14, slowly pump
the vacuum pump.
ECM CONNECTOR E (31P)
SG3IPNK)
1 213 4 5 6 71 18 9
':L VVVVI14
1516 /118V120 21
22231241
L
~
27VI29130 31
FTPILTGRN)
Wire side offemale terminals
38. Continue to pump vacuum until the voltage drops
to about 1.5V. Make sure the engine coolant
temperature is still above 95°F (35°C) and your
vacuum pump has no leak.
39. Monitor the voltage for 20 seconds.
Does the voltage hold for at least 20 seconds?
YES-Inspect the fuel tank vapor control line and
connections .•
NO-Go to step 40.
40. Turn the ignition switch OFF.
41. Disconnect the purge line hose (A) from the
canister at the metal line and plug the hose (B).
A
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041-
:::::-=-=-------------~J._~'7/Ir-
xxxxx
42. Turn the ignition switch ON (II).