Acura CSX. Instruction — page 176

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02

SNR9AEAA20360345801MAAT01

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02

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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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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

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*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

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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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