Honda 2002 Accord Manual page 427

12. Plug the upper port (A) of the EVAP two-way valve.
A 9 7 3 X - 0 4 1 - X X X X X
13. While monitoring the FTP sensor voltage with the
Honda PGM Tester, or measuring the voltage
between PCM connector terminals A29 and C18,
slowly pump vacuum until the voltage drops to
approximately 1.5 volts.
E C M / P C M C O N N E C T O R S
/
2 3 4 5 6
/
8 9 10
12 13 14 15
/
17 18 19 20 21
/
2 3 24
25 26 2 7 28 29 30
/
3 2
P T A N K ( L T G R N )
C ( 3 1 P )
1 | 2 | 3 1 /
IZZ
2 3
13
2 4
14
2 5
15
5 6 7
16
2 6
17
2 7 2 3
19
8 9 10
20
29 30
W i r e s i d e o f f e m a l e t e r m i n a l s
S G 2 ( G R N / B L K )
Does the voltage drop to 1.5 V and hold for at
least 20 seconds?
Y E S - T h e EVAP bypass solenoid valve/EVAP two-
way valve is OK. Go to step 22.
NO—Repair leakage from the EVAP bypass
solenoid valve, EVAP two-way valve, FTP sensor,
or O-rings. •
Vacuum Hoses and Connections Test
14. Perform the fuel tank vapor control valve test (see
page 11-160).
Is the fuel tank vapor control valve normal?
Y E S - G o to step 15.
NO —Replace the fuel tank vapor control valve. •
15. Tighten the fuel cap 3 "clicks", then monitor fuel
tank pressure readings with the Honda PGM Tester.
16. Start the engine. Let the engine idle for 5 minutes.
17. Check the FTP sensor reading.
D J H
Is the reading above 0.53 kPa (0.16 in. Hg 4 mm
Hg) pressure, or approx 3V ?
Y E S - S u b s t i t u t e a known-good ECM/PCM and
retest (see page 11-5). If the symptom/indication
goes away, replace the original ECM/PCM. •
NO —Check the following parts for leaks:
• Fuel tank (A)
• Fuel fill cap (B)
• 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 vent tube (H)
• EVAP two-way valve (I)
• FTP sensor (J)
- Repair or replace any leaking p a r t s . •
11-151