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PCV System Acura RSX I

Auxiliary Emission Control Systems 4 illustrations ~555 words

DTC Troubleshooting

DTCDescription
DTC P2279Intake Air System Leak Detected (2004 model)
DTC P2279Intake Air System Leak Detected (2005-2006 models)

DTC INDEX

DTC P2279: Intake Air System Leak Detected (2004 model)

  1. Reset the ECM/PCM (see «ECM/PCM RESET (2002-2004 MODELS)»(/acura/rsx/i-2001-2004/remont/auxiliary-emission-control-systems/#fuel-system-emissions-systems__ecmpcm-reset-2002-2004-models) ).
  2. Start the engine. Hold the engine speed at 3,000 RPM without load (in Park or neutral) until the radiator fan comes on.
  3. Let the engine idle for at least 40 seconds with the throttle fully closed.
  4. Check for Temporary DTCs or DTCs with a scan tool or the HDS. Is DTC P2279 indicated? YES - Check for vacuum leaks at these parts: PCV valve PCV hose EVAP canister purge valve Throttle body Intake manifold Brake booster hose Intake air bypass control thermal valve NO - Intermittent failure, system is OK at this time.

DTC P2279: Intake Air System Leak Detected (2005-2006 models)

Note. 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 EVAP canister purge valve Throttle body Intake manifold Brake booster hose Intake air bypass control thermal valve Are the parts OK? YES - Go to step 2. NO - Repair or replace the leaking part(s), 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 for 1 minute.
  3. Monitor the OBD STATUS for DTC P2279 in the DTCs MENU with the HDS. Does the screen indicate FAILED? YES - Check the camshaft timing (see «CAM CHAIN INSTALLATION»(/acura/rsx/i-2001-2004/remont/mechanical/#cylinder-head__cam-chain-installation) ), then go to step 4. NO - If the screen indicates PASSED, intermittent failure, system is OK at this time. If the screen indicates NOT COMPLETED, go to step 2 and recheck.
  4. Reset the ECM/PCM with the HDS.
  5. Do the ECM/PCM idle learn procedure (see «ECM/PCM IDLE LEARN PROCEDURE»(/acura/rsx/i-2001-2004/remont/testing-diagnostics/#idle-control-system) ).
  6. Check for Temporary DTCs or DTCs with the HDS. Are any Temporary DTCs or DTCs indicated? YES - If DTC P2279 is indicated, check for vacuum leaks at the PCV valve, the PCV hose, the purge (PCS) line, the throttle body, or the brake booster hose, then go to step 4 . If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting. NO - Go to step 7.
  7. Monitor the OBD STATUS for DTC P2279 in the DTCs MENU with the HDS. Does the screen indicate PASSED? YES - Troubleshooting is complete. NO - If the screen indicates FAILED, go to step 1 and recheck. If the screen indicates NOT COMPLETED, go to step 6 and recheck.

Scheme 111

Scheme 111: PCV Valve Inspection
Scheme 111: PCV Valve Inspection

Scheme 112

Scheme 112
Scheme 112

Scheme 113

Scheme 113
Scheme 113
  1. Check the PCV valve (A), hoses (B) and connections for leaks or restrictions. K20A2/K20Z1 engines K20A3 engine
  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 grommet for cracks or damage. If the grommet is OK, replace the PCV valve and recheck.

Scheme 114

Scheme 114: PCV Valve Replacement
Scheme 114: PCV Valve Replacement
  1. Unscrew the PCV valve (A) and, remove it.
  2. Install the valve in the reverse order of removal with a new washer (B).

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