Acura CSX. Manual — part 176
01
02
SNR9AEAA20360345801MAAT01
01
02
SNR9AEBA20360345801MAAT01
K20Z2 engine
K20Z3 engine
11-372
11-372
PCV System
PCV Valve Inspection
B
B
A
A
B
A
B
A
1. Check the PCV valve (A), the hoses (B), and the
connections for leaks or restrictions.
2. At idle, make sure there is a clicking sound from the
PCV valve when the hose between the PCV valve
and intake manifold is lightly pinched (A) with your
fingers or pliers.
If there is no clicking sound, check the PCV valve
washer for cracks or damage. If the washer is OK,
replace the PCV valve then recheck.
1. Check the PCV valve (A), hoses (B), and
connections for leaks or restrictions.
2. At idle, make sure there is a clicking sound from the
PCV valve when the hose between the PCV valve
and intake manifold is lightly pinched (A) with your
fingers or pliers.
If there is no clicking sound, check the PCV valve
washer for cracks or damage. If the washer is OK,
replace the PCV valve and recheck.
08/08/21 14:32:29 61SNR030_110_0372
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SNR9A00A20360345801KBAT02
11-373
PCV Valve Replacement
A
44 N·m
(4.5 kgf·m, 33 lbf·ft)
B
1. Disconnect the PCV hose.
2. Remove the PCV valve (A).
3. Install the parts in the reverse order of removal
with a new washer (B).
08/08/21 14:32:29 61SNR030_110_0373
*01
*02
SNR9A00A20323400000DAAT00
11-374
EVAP System
Component Location Index
EVAPORATIVE EMISSION (EVAP)
CANISTER PURGE VALVE
ENGINE CONTROL MODULE (ECM)/
POWERTRAIN CONTROL MODULE (PCM)
FUEL TANK PRESSURE
(FTP) SENSOR
EVAPORATIVE EMISSION (EVAP)
CANISTER VENT SHUT VALVE
FUEL TANK VAPOR CONTROL VALVE
EVAPORATIVE EMISSION
(EVAP) CANISTER
FUEL FILL CAP
Replacement, page 11-409
Update, page 11-227
Substitution, page 11-7
Replacement, page 11-228
* : This illustration shows K20Z2 engine.
Replacement,
page 11-408
Replacement, page 11-409
Replacement,
page 11-407
08/08/21 14:32:32 61SNR030_110_0374
−
−
01
02
SNR9AA7K72100090443FAAT30
−
−
−
−
−
−
DTC P0443:
Special Tools Required
YES
NO
YES
NO
YES
NO
11-375
DTC Troubleshooting
A
B
PCS (YEL/BLU)
EVAP CANISTER PURGE VALVE
2P CONNECTOR
EVAP Canister Purge Valve
Circuit Malfunction
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. Start the engine. Hold the engine speed at
3,000 rpm without load (A/T in P or N, M/T in
neutral) until the radiator fan comes on, then let it
idle.
4. Check for Temporary DTCs or DTCs with the HDS.
Go to step 5.
Intermittent failure, the system is OK at this
time. Check for poor connections or loose terminals
at the EVAP canister purge valve and the ECM/
PCM.
5. Turn the ignition switch to LOCK (0), and allow the
engine to cool below 60 °C (140 °F).
6. Disconnect the vacuum hose (A) from the purge
valve (B) in the engine compartment, and connect a
vacuum pump/gauge, 0
30 in.Hg, to the hose.
7. Start the engine, and let it idle.
Go to step 8.
Go to step 14.
8. Turn the ignition switch to LOCK (0).
9. Disconnect the EVAP canister purge valve 2P
connector.
10. Check for continuity between EVAP canister purge
valve 2P connector terminal No. 2 and body ground.
Go to step 11.
Go to step 23.
* : This illustration shows K20Z2 engine.
Wire side of female terminals
Is DT C P0443 indicated?
Is ther e vacuum?
Is ther e continuity?
08/08/21 14:32:32 61SNR030_110_0375
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