sensor ACURA CSX 2006 Service Repair Manual



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DTC P0457:
YES
NO
YES
NO YES
NO
YES
NO
11-390
EVAP System
DTC Troubleshooting (cont’d)
A
B
C A
EVAP System Leak Detected/Fuel
Fill Cap Loose or Missing
NOTE: Before you troubleshoot, record all freeze data
and any on-board snapshot, and review the general
troubleshooting information (see page 11-3).
1. Check the fuel fill cap (the cap must say TIGHTEN TO CLICK). It should turn 1/4 turn after it’s tight,
then it clicks.
Go to step 2.
Replace or tighten the cap, then go to step 19.
2. Check the fuel fill cap seal (A) and the fuel fill pipe mating surface (B). Verify that the fuel fill cap tether
cord (C) is not caught under the cap.
Replace the fuel fill cap or the fuel fill pipe,
then go to step 19.
Go to step 3.
3. Turn the ignition switch to ON (II).
4. Clear the DTC with the HDS. 5. Do the EVAP FUNCTION TEST in the INSPECTION
MENU with the HDS.
Intermittent failure, the system is OK at this
time. Check for poor connections or loose terminals
at the FTP sensor or the EVAP canister vent shut
valve and the ECM/PCM.
Go to step 6.
6. Turn the ignition switch to LOCK (0).
7. Remove the EVAP canister vent shut valve from the EVAP canister (see page 11-409).
8. Connect the 2P connector to the EVAP canister vent shut valve.
9. Turn the ignition switch to ON (II).
10. Select EVAP CVS ON in the INSPECTION MENU with the HDS.
11. Check the EVAP canister vent shut valve (A) operation.
Check the routing of the EVAP canister vent
tube,thengotostep18.
Go to step 12.
Is the correct f uel f ill cap installed and properlytightened?
Is the f uel f ill cap seal missing or damaged, is thef uel f i l l pi pe d amaged , or i s t he t et her cor d caughtund er the cap? Is the result OK ?
Does t he v al v e oper at e?
08/08/21 14:32:38 61SNR030_110_0390
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YES
NO
YES
NO
YES
NO
YES
NO
DTC P0496:
11-39111-391
12. Turn the ignition switch to LOCK (0).
13. Replace the EVAP canister vent shut valve
(see page 11-409).
14. Turn the ignition switch to ON (II).
15. Reset the ECM/PCM with the HDS.
16. Do the ECM/PCM idle learn procedure (see page 11-310).
17. Do the EVAP FUNCTION TEST in the INSPECTION MENU with the HDS.
Troubleshooting is complete.
Check for poor connections or loose terminals
at the FTP sensor, the EVAP canister vent shut
valve, and the ECM/PCM, then go to step 1.
18. Reinstall the EVAP canister vent shut valve.
19. Turn the ignition switch to ON (II).
20. Reset the ECM/PCM with the HDS.
21. Do the ECM/PCM idle learn procedure (see page 11-310).
22. Do the EVAP FUNCTION TEST in the INSPECTION MENU with the HDS.
Troubleshooting is complete.
Check for poor connections or loose terminals
at the FTP sensor, the EVAP canister vent shut
valve, and the ECM/PCM, then go to step 1. NOTE: Before you troubleshoot, record all freeze data
and any on-board snapshot, and review the general
troubleshooting information (see page 11-3).
1. Turn the ignition switch to ON (II).
2. Clear the DTC with the HDS.
3. Do the EVAP FUNCTION TEST in the INSPECTION MENU with the HDS.
Intermittent failure, the system is OK at this
time. Check for poor connections or loose terminals
at the FTP sensor, the EVAP canister purge valve,
the EVAP canister vent shut valve, and the ECM/
PCM.
Go to step 4.
4. Turn the ignition switch to LOCK (0).
5. Replace the EVAP canister purge valve (see page 11-409).
6. Turn the ignition switch to ON (II).
7. Reset the ECM/PCM with the HDS.
8. Do the ECM/PCM idle learn procedure (see page 11-310).
9. Do the EVAP FUNCTION TEST in the INSPECTION MENU with the HDS.
Troubleshooting is complete.
Check for poor connections or loose terminals
at the FTP sensor, the EVAP canister purge valve,
the EVAP canister vent shut valve, and the ECM/
PCM, then go to step 1.EVAP System High Purge Flow
Detected
Is the result OK ?
Is the result OK ? Is the result OK ?
Is the result OK ?
08/08/21 14:33:20 61SNR030_110_0391
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DTC P0497:
Special Tools Required
YES
NO
YES
NO
YES
NO YES
NO
11-392EVAP System
DTC Troubleshooting (cont’d)
A
C
07JAZ-001000B
B
EVAP System Low Purge Flow
Detected
 Vacuum/pressure gauge, 0 4 in.Hg, 07JAZ-001000B
 Vacuum pump/gauge, 0 30 in.Hg, Snap-on YA4000A
or equivalent, commercially available
NOTE: Before you troubleshoot, record all freeze data
and any on-board snapshot, and review the general
troubleshooting information (see page 11-3). 1. Check the fuel fill cap installation (The cap must say TIGHTEN TO CLICK. The cap should tighten 1/4 turn
after it is tight.).
Go to step 2.
Properly install the fuel fill cap, then go to
step 23.
2. Turn the ignition switch to ON (II).
3. Clear the DTC with the HDS.
4. Do the EVAP FUNCTION TEST in the INSPECTION MENU with the HDS.
Intermittent failure, the system is OK at this
time. Check for poor connections or loose terminals
at the FTP sensor, the EVAP canister purge valve,
the EVAP canister vent shut valve, and the ECM/
PCM.
Go to step 5.
5. Check for a loose or damaged EVAP canister purge line between the intake manifold and the EVAP
canister purge valve.
Go to step 6.
Reconnect or repair the EVAP canister purge
line, then go to step 23. 6. Disconnect the vacuum hose (A) from the EVAP
canister purge valve (B) in the engine compartment,
and connect a T-fitting (C) between the vacuum
gauge, the vacuum pump/gauge, 0 30 in.Hg, and
the vacuum hose as shown.
7. Select EVAP PCS ON in the INSPECTION MENU with the HDS.
8. Slowly apply about 2 kPa (15 mmHg, 0.6 in.Hg) of vacuum to the hose.
Replace the EVAP canister purge valve, then
go to step 22.
Go to step 9.
Is the f uel f ill cap installed and properlytightened?
Is the result OK ?Is the line OK ? Does i t hol d v acuum?
08/08/21 14:33:20 61SNR030_110_0392
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YES
NO
11-393
A 07JAZ-001000B
A B
9. Reconnect the vacuum hose to the EVAP canister
purge valve.
10. Disconnect the vacuum hose from the purge line (at the EVAP canister side), and connect a T-fitting (A)
between the vacuum gauge and the vacuum pump/
gauge, 0 30 in.Hg, as shown.
11. Select EVAP PCS ON in the INSPECTION MENU with the HDS.
12. Slowly apply about 2 kPa (15 mmHg, 0.6 in.Hg) of vacuum to the hose.
Check for a restricted EVAP canister purge
line between the EVAP canister purge valve and the
EVAPcanister,thengotostep22.
Go to step 13. 13. Remove the FTP sensor with its connector
connected (see page 11- 408).
14. Connect a T-fitting (A) between the vacuum pump/ gauge, 0 30 in.Hg, the vacuum pump, and the FTP
sensor (B) as shown.
15. Check and record the FTP SENSOR reading in the DATA LIST with the HDS.
16. Slowly apply about 1.3 kPa (10 mmHg, 0.4 in.Hg) of vacuum to the hose.
(cont’d)
Does i t hol d v acuum?
08/08/21 14:33:21 61SNR030_110_0393
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YES
NO
YES
NO
YES
NO
11-394EVAP System
DTC Troubleshooting (cont’d)
C
A
B
07JAZ-00100B
17. ChecktheFTPSENSORintheDATALISTwiththe
HDS.
Go to step 18.
Replace the FTP sensor (see page 11-408),
then go to step 22.
18. Reconnect the vacuum hoses to the EVAP canister purge line (EVAP canister side), and reinstall the
FTP sensor.
19. Disconnect the vacuum hose (purge line) (A) from the EVAP canister purge valve (B), and connect a
T-fitting (C) between the vacuum gauge and the
vacuum pump/gauge, 0 30 in.Hg, as shown.
20. Select EVAP CVS ON in the INSPECTION MENU with the HDS. 21. Slowly apply about 2 kPa (15 mmHg, 0.6 in.Hg) of
vacuum to the hose.
Check for a blockage at the EVAP canister
port, then go to step 22.
Replace the EVAP canister vent shut valve
(see page 11-409), then go to step 22.
22. Reconnect all hoses.
23. Turn the ignition switch to ON (II).
24. Reset the ECM/PCM with the HDS.
25. Do the ECM/PCM idle learn procedure (see page 11-310).
26. Do the EVAP FUNCTION TEST in the INSPECTION MENU with the HDS.
Troubleshooting is complete.
Check for poor connections or loose terminals
at the FTP sensor, the EVAP canister purge valve,
the EVAP canister vent shut valve, and the ECM/
PCM, then go to step 1.
I s t he d i f f er ence mor e t han 1.1 k Pa ( 8 mmH g, 0.31 i n.H g) bef or e and af t er appl y i ng v acuum? Does t he hose hol d v acuum?
Is the result OK ?
08/08/21 14:33:21 61SNR030_110_0394
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DYNOMITE -2009-

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DTC P0497:
Special Tools Required
YES
NO
YES
NO
11-395
A B
EVAP System Low Purge Flow
Detected
 Vacuum/pressure gauge, 0 4 in.Hg 07JAZ-001000B
 Vacuum pump/gauge, 0 30 in.Hg, Snap-on YA4000A
or equivalent, commercially available
NOTE: Before you troubleshoot, record all freeze data
and any on-board snapshot, and review the general
troubleshooting information (see page 11-3). 1. Turn the ignition switch to ON (II).
2. Clear the DTC with the HDS.
3. Do the EVAP FUNCTION TEST in the INSPECTION MENU with the HDS.
Intermittent failure, the system is OK at this
time. Check for poor connections or loose terminals
at the FTP sensor and the ECM.
Go to step 4.
4. Turn the ignition switch to LOCK (0).
5. Check for poor connections, blockage, or damage at the EVAP canister purge line between the throttle
body and the EVAP canister.
Go to step 5.
Reconnect or repair the EVAP canister purge
line, then go to step 25. 6. Disconnect the vacuum hose (A) from the EVAP
canister purge valve (B).
(cont’d)
Is the result OK ?Is the line OK ?
08/08/21 14:33:21 61SNR030_110_0395
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DYNOMITE -2009-

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YES
NO YES
NO
YES
NO
11-397
A
07JAZ-001000B A B
15. Connect the vacuum pump/gauge, 0 30 in.Hg, to
the vacuum hose (A) as shown.
16. Start the engine, and let it idle. Go to step 17.
Check for a blockage at the EVAP purge line
between the throttle body and the EVAP canister
purge valve, then go to step 25.
17. Turn the ignition switch to LOCK (0).
18. Remove the FTP sensor with its connector connected (see page 11- 408).
19. Connect a T-fitting (A) between the vacuum pump/ gauge, 0 30 in.Hg and connect the vacuum pump
and the FTP sensor (B) as shown. 20. Turn the ignition switch to ON (II).
21. Check and record the FTP SENSOR reading in the
DATA LIST with the HDS.
22. Slowly apply about 1.3 kPa (10 mmHg, 0.4 in.Hg) of vacuum to the hose.
23. ChecktheFTPSENSORintheDATALISTwiththe HDS.
Check for debris or blockage at the EVAP
canister port, then go to step 25.
Go to step 24.
24. Replace the FTP sensor (see page 11-408).
25. Reconnect all hoses.
26. Turn the ignition switch to ON (II).
27. Reset the ECM with the HDS.
28. Do the ECM idle learn procedure (see page 11-310).
29. Do the EVAP FUNCTION TEST in the INSPECTION MENU with the HDS.
Troubleshooting is complete.
Check for poor connections or loose terminals
at the FTP sensor and the ECM, then go to step 1.
Is ther e v acuum? Does t he v al ue change?
Is the result OK ?
08/08/21 14:33:23 61SNR030_110_0397
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DTC P1454:
DTC P2422:
YES
NO
YES
NO YES
NO
11-402EVAP System
DTC Troubleshooting (cont’d)
A
FTP Sensor Range/Performance
Problem
EVAP Canister Vent Shut Valve
Stuck Closed Malfunction
NOTE: Before you troubleshoot, record all freeze data
and any on-board snapshot, and review the general
troubleshooting information (see page 11-3).
1. Turn the ignition switch to ON (II).
2. Clear the DTC with the HDS.
3. Turn the ignition switch to LOCK (0).
4. Remove the fuel fill cap, and wait 1 minute.
5. ChecktheFTPSENSORintheDATALISTwiththe HDS.
Go to step 6.
Go to step 17.
6. Install the fuel fill cap.
7. Clear the DTC with the HDS.
8. Start the engine, and let it idle without load (A/T in P or N, M/T in neutral) until the radiator fan comes
on.
9. Monitor the OBD STATUS for DTC P1454 in the DTCs MENU with the HDS.
Go to step 10.
If the screen indicates PASSED, intermittent
failure, the system is OK at this time. Check for
poor connections or loose terminals at the FTP
sensor, the EVAP canister vent shut valve, and the
ECM/PCM. Also check for a blockage in the vent
hoses and the drain joint. If the screen indicates
NOT COMPLETED, keep idling until a result comes
on. 10. Clear the DTC with the HDS.
11. Turn the ignition switch to LOCK (0).
12. Remove the EVAP canister vent shut valve from the
EVAP canister (see page 11-409).
13. Connect the 2P connector to the EVAP canister vent shut valve.
14. Turn the ignition switch to ON (II).
15. Select EVAP CVS ON in the INSPECTION MENU with the HDS.
16. Check the EVAP canister vent shut valve (A) operation.
Check for a blockage in the EVAP canister,
the vent hoses, and the drain joint, then install the
EVAP canister vent shut valve, and go to step 23.
Replace the EVAP canister vent shut valve
(see page 11-409), then go to step 23.
Is i t bet w een 0.67 and 0.67 k Pa ( 5 and 5 mmH g, 0.2 and 0.2 i n.H g), or 2.4 and 2.6 V ?
Does t he scr een i nd i cat e F AILE D? Does t he v al v e oper at e?
08/08/21 14:33:24 61SNR030_110_0402
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YES
NO YES
NO
YES
NO
11-403
A
B
A
17. Disconnect the air tube (A) from the FTP sensor (B).
18. ChecktheFTPSENSORintheDATALISTwiththeHDS.
Check for a blockage in the FTP sensor air
tube or the vent, then go to step 23.
Go to step 19.
19. Turn the ignition switch to LOCK (0).
20. Remove the FTP sensor (A) from the EVAP canister with its connector connected (see page 11-408). 21. Turn the ignition switch to ON (II).
22. ChecktheFTPSENSORintheDATALISTwiththe
HDS.
Check for debris or clogging at the EVAP
canister and the FTP sensor port, then go to
step 23.
Replace the FTP sensor (see page 11-408),
then go to step 23.
23. Turn the ignition switch to ON (II).
24. Reset the ECM/PCM with the HDS.
25. Do the ECM/PCM idle learn procedure (see page 11-310).
26. Start the engine, and let it idle without load (A/T in P or N, M/T in neutral) until the radiator fan comes
on.
27. Check for Temporary DTCs or DTCs with the HDS.
Check for poor connections or loose
terminals at the FTP sensor, the EVAP canister vent
shut valve, and the ECM/PCM, then go to step 1.
Go to step 28.
(cont’d)
Is i t bet w een 0.67 and 0.67 k Pa ( 5 and5 mmH g, 0.2 and 0.2 i n.H g), or 2.4 and 2.6 V ? Is i t bet w een 0.67 k Pa and 0.67 k Pa ( 5 and
5 mmH g, 0.2 and 0.2 i n.H g), or 2.4 and 2.6 V ?
Is DT C P1454 and/ or P2422 indicated?
08/08/21 14:33:25 61SNR030_110_0403
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NO
DTC P145C:
11-40411-404 EVAP System
DTC Troubleshooting (cont’d)
28. Monitor the OBD STATUS for DTC P1454 in the
DTCs MENU with the HDS.
Troubleshooting is complete. If any other
Temporary DTCs or DTCs were indicated in step 27,
go to the indicated DTC’s troubleshooting.
If the screen indicates FAILED, check for poor
connections or loose terminals at the FTP sensor,
the EVAP canister vent shut valve, and the ECM/
PCM, then go to step 1. If the screen indicates NOT
COMPLETED, keep idling until a result comes on. NOTE:
 Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general
troubleshooting information (see page 11-3).
 This DTC is representative of an EVAP system purge flow problem. If DTC P145C is indicated alone,
troubleshoot P0496 and P0497 using the freeze data
for P145C.
 If DTC P0497 and P145C are stored at the same time, check for a poor connection, a blockage, or damage
at the EVAP canister purge line between the EVAP
canister purge valve and the EVAP canister, or check
for a stuck closed EVAP canister purge valve.
 If any of the DTCs listed below are indicated at the same time as DTC P145C, troubleshoot those DTC
first, then recheck for P145C:
P0496, P0497: EVAP system purge flowEVAP System Purge Flow
Malfunction
Does t he scr een i nd i cat e PASSE D?
08/08/21 14:33:25 61SNR030_110_0404
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