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PCV System Acura TSX I

Auxiliary Emission Control Systems 4 illustrations ~473 words

Scheme 103

Scheme 103: Component Location Index
Scheme 103: Component Location Index

DTC P2279: Intake Air System Leak Detected

Note. Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information (see GENERAL TROUBLESHOOTING INFORMATION ). 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 Brake booster 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/tsx/i-2003-2008/remont/mechanical/#cylinder-head__cam-chain-installation) ), then go to step 4. NO - 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 ECM/PCM with the HDS.
  5. Do the ECM/PCM idle learn procedure (see «ECM/PCM IDLE LEARN PROCEDURE»(/acura/tsx/i-2003-2008/remont/engine-control-systems/#idle-control-system__ecmpcm-idle-learn-procedure) ).
  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 for 1 minute.
  7. Check for Temporary DTCs or DTCs with the HDS. Is DTC P2279 indicated? YES - Check for vacuum leaks at the PCV valve, the PCV hose, the purge (PCS) line, the throttle body, the brake booster, or the brake booster hose, then go to step 4 . NO - Go to step 8.
  8. Monitor the OBD STATUS for DTC P2279 with the HDS. Does the screen indicate PASSED? YES - Troubleshooting is complete. If any other Temporary DTCs or DTCs were indicated in step 7 , go to the indicated DTCs troubleshooting. NO - If the screen indicates FAILED, go to step 1 . If the screen indicates NOT COMPLETED, keep idling until a result comes on.

Scheme 104

Scheme 104: PCV Valve Inspection
Scheme 104: PCV Valve Inspection

Scheme 105

Scheme 105
Scheme 105
  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.

Scheme 106

Scheme 106: PCV Valve Replacement
Scheme 106: PCV Valve Replacement
  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).

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