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Honda Ridgeline. Manual - part 145

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DTC P2279:

YES

11-344

PCV System

DTC Troubleshooting

Intake Air System Leak

NOTE:

• Before you troubleshoot, record all freeze data and

any on-board snapshot, and review the general
troubleshooting information (see page 11-3).

• If DTC P0443 is stored at the same time as DTC P2279,

troubleshoot DTC P0443 first, then recheck for DTC
P2279.

1. Check for vacuum leaks at these parts:

• PCV valve
• PCV hose
• Purge (PCS) line
• Throttle body
• Intake manifold
• Brake booster hose

Go to step 2.

Repair or replace any damaged parts, then go

to step 4.

2. Start the engine. Hold the engine speed at

3,000 rpm without load (in Park or neutral) until the
radiator fan comes on, then let it idle 1 minute.

3. Monitor the OBD STATUS for DTC P2279 in the

DTCs MENU with the HDS.

Check the camshaft timing (see page 6-16),

then go to step 4.

If the screen indicates PASSED, intermittent

failure, the system is OK at this time. If the screen
indicates NOT COMPLETED, go to step 2 and
recheck.

4. Reset the PCM with the HDS.

5. Do the PCM idle learn procedure (see page 11-273).

6. Start the engine. Hold the engine speed at

3,000 rpm without load (in Park or neutral) until the
radiator fan comes on, then let it idle 1 minute.

7. Check for Temporary DTCs or DTCs with the HDS.

Check for vacuum leaks at the PCV valve, the

PCV hose, the purge (PCS) line, the throttle body,
the intake manifold, and the brake booster hose,
then go to step 1.

Go to step 8.

8. Monitor the OBD STATUS for DTC P2279 in the

DTCs MENU with the HDS.

Troubleshooting is complete. If any other

Temporary DTCs or DTCs were indicated in step 7,
go to the indicated DTC’s troubleshooting.

If the screen indicates FAILED, go to step 1. If

the screen indicates NOT COMPLETED, keep idling
until a result comes on.

Ar e the par ts OK ?

Does the scr een indicate F AILED?

Is DT C P227 9 indicated?

Does the scr een indicate PASSED?

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11-345

PCV Valve Inspection

PCV Valve Replacement

A
12 N·m
(1.2 kgf·m, 8.7 lbf·ft)

1. Remove the intake manifold cover (see step 1 on

page 9-3).

2. Check the PCV valve (A), hoses (B), and

connections for leaks or restrictions.

3. At idle, listen to the PCV valve (A) with a

stethoscope as you lightly pinch the PCV hose (B)
with your fingers or pliers several times. Each time
the hose is pinched, the valve should click.

If there is no clicking sound, check the PCV valve
grommet for cracks or damage. If the grommet is
OK, replace the PCV valve and recheck.

1. Remove the intake manifold cover (see step 1 on

page 9-3).

2. Remove the bolt (A).

NOTE: Take care not to spill oil on the hot exhaust
manifold.

3. Remove the PCV valve (B).

4. Install the parts in the reverse order of removal.

NOTE:

• When installing a new PCV valve, make sure the

O-rings (C) are in place.

• When installing a used PCV valve, use new

O-rings.

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11-346

EVAP System

Component Location Index

POWERTRAIN CONTROL
MODULE (PCM)

EVAPORATIVE EMISSION (EVAP)
CANISTER PURGE VALVE

FUEL TANK PRESSURE
(FTP) SENSOR

EVAPORATIVE EMISSION
(EVAP) CANISTER

EVAPORATIVE EMISSION
(EVAP) CANISTER VENT SHUT VALVE

EVAPORATIVE EMISSION (EVAP)
CANISTER FILTER

Update, page 11-7
Substitution, page 11-8
Replacement, page 11-205

Replacement, page 11-363

Replacement, page 11-374

Replacement, page 11-373

Replacement, page 11-375

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DTC P0443:

Special Tools Required

YES

11-347

DTC Troubleshooting

EVAP CANISTER PURGE VALVE
2P CONNECTOR

PCS (RED/YEL)

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 ON (II).

2. Clear the DTC with the HDS.

3. Start the engine. Hold the engine speed at

3,000 rpm without load (in Park or 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 PCM.

5. Turn the ignition switch OFF, and allow the engine

to cool below 140 °F (60 °C).

6. Disconnect the vacuum hose (A) from the purge

joint (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 OFF.

9. Disconnect the EVAP canister purge valve 2P

connector.

10. Check for continuity between EVAP canister purge

valve 2P connector terminal No. 1 and body ground.

Go to step 11.

Go to step 23.

(cont’d)

Wire side of female terminals

Is DT C P0443 indicated?

Is ther e vacuum?

Is ther e continuity?

Content .. 143 144 145 146 ..