Scheme 1
Scheme 1: Component Location Index
Scheme 2
Scheme 2: 2002-2004 Models
Scheme 3
Scheme 3: 2005-2006 Models
Scheme 4
Scheme 4: Ignition Timing Inspection
Scheme 5
- Connect the Honda Diagnostic System (HDS) to the data link connector (DLC) (see step 2 on «IF THE MIL (MALFUNCTION INDICATOR LAMP) HAS COME ON»(/acura/rsx/i-2004-2006/remont/auxiliary-emission-control-systems/#fuel-system-emissions-systems) ), and check for DTCs. If a DTC is present, diagnose and repair the cause before inspecting the ignition timing.
- 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.
- Check the idle speed (see «IDLE SPEED INSPECTION»(/acura/rsx/i-2004-2006/remont/testing-diagnostics/#idle-control-system__idle-speed-inspection) ).
- Select "SCS" mode using the HDS.
- Connect the timing light to the service loop.
- Aim the light toward the pointers (A) on the cam chain case. Check the ignition timing under a no load condition (headlights, blower fan, rear window defogger, and air conditioner are turned off).
- If the ignition timing differs from the specification, check the cam timing. If the cam timing is OK, update the engine control module (ECM)/powertrain control module (PCM) if it does not have the latest software (see «HOW TO UPDATE THE ECM/PCM»(/acura/rsx/i-2004-2006/remont/auxiliary-emission-control-systems/#fuel-system-emissions-systems__how-to-update-the-ecmpcm) ), or substitute a known-good ECM/PCM (see «HOW TO SUBSTITUTE THE ECM/PCM (2002-2004 MODELS)»(/acura/rsx/i-2004-2006/remont/auxiliary-emission-control-systems/#fuel-system-emissions-systems__how-to-substitute-the-ecmpcm-2002-2004) ), then recheck. If the system works properly, and the ECM/PCM was substituted, replace the original ECM/PCM (see «ECM/PCM REPLACEMENT»(/acura/rsx/i-2004-2006/remont/testing-diagnostics/#pgm-fi-system) ).
- Turn the ignition switch OFF.
- Disconnect the HDS and the timing light.
Scheme 6
Scheme 6: Ignition Coil Removal/Installation
- Remove the ignition coil cover (A), disconnect the ignition coil connectors (B), then remove the ignition coils (C).
- Install the ignition coils in the reverse order of removal.
Scheme 7
Scheme 7: 2005-2006 Models
Scheme 8
Scheme 9
Scheme 10
Scheme 11
- Check the No. 31 (15 A) fuse in the under-dash fuse/relay box. Is the fuse OK? YES - Go to step 2. NO - Replace the fuse.
- Remove the ignition coil relay from the under-dash fuse/relay box, and test it (see «POWER RELAY TEST»(/acura/rsx/i-2004-2006/remont/body-electrical/#relays__power-relay-test) ). Is the relay OK? YES - Go to step 3. NO - Replace the ignition coil relay.
- Measure the voltage between ignition coil relay 4P socket terminal No. 1 and body ground, and between terminal No. 4 and body ground. Is there battery voltage? YES - Go to step 4. NO - Replace the under-dash fuse/relay box.
- Check for continuity between ignition coil relay 4P socket terminal No. 2 and the No. 1, No. 2, No. 3 and No. 4 ignition coil 3P connector terminal No. 3. Is there continuity? YES - Go to step 5. NO - Repair an open in the wire between ignition coil relay 4P socket terminal No. 2 and ignition coil 3P connector terminal No. 3.
- Connect the Honda Diagnostic System (HDS) to the data link connector (DLC) (see step 2 on «IF THE MIL (MALFUNCTION INDICATOR LAMP) HAS COME ON»(/acura/rsx/i-2004-2006/remont/auxiliary-emission-control-systems/#fuel-system-emissions-systems) ). Turn the ignition switch ON (II), and jump the SCS line with the HDS, then turn the ignition switch OFF. NOTE: This step must be done to protect the engine control module (ECM)/ powertrain control module (PCM) from damage.
- Disconnect ECM/PCM connector E (31P).
- Check for continuity between ignition coil relay 4P socket terminal No. 3 and body ground. Is there continuity? YES - Repair a short in the wire between ignition coil relay 4P socket terminal No. 3 and the ECM/PCM. NO - Go to step 8.
- Check for continuity between ignition coil relay 4P socket terminal No. 3 and ECM/PCM connector terminal E7. 2002-2004 models 2005-2006 models Is there continuity? YES - The system is OK at this time. Check for loose or poor connections at the ignition coil relay and the ECM/PCM (E7). NO - Repair an open in the wire between ignition coil relay 4P socket terminal No. 3 and the ECM/PCM (E7).
Scheme 12
Scheme 12: Spark Plug Inspection
Scheme 13
Scheme 14
- Inspect the electrodes and ceramic insulator. Burned or worn electrodes may be caused by: Advanced ignition timing Loose spark plug Plug heat range too hot Insufficient cooling Fouled plug may be caused by: Retarded ignition timing Oil in combustion chamber Incorrect spark plug gap Plug heat range too cold Excessive idling/low speed running Clogged air cleaner element Deteriorated ignition coils
- If the spark plug electrode is dirty or contaminated, clean the electrode with a plug cleaner. NOTE: Do not use a wire brush or scrape the iridium electrode since this will damage the electrode. Use a chemical cleaner such as Carb Spray to clean contamination on the electrode. When using a sand blaster spark plug cleaner, do not clean for more than 20 seconds to avoid damaging the electrode.
- Do not adjust the gap of iridium tip plugs (A); replace the spark plug if the gap is out of specification.
- Replace the plug at the specified interval, or if the center electrode is rounded (A). Use only the spark plugs listed.
- Apply a small amount of anti-seize compound to the plug threads, and screw the plugs into the cylinder head, finger-tight. Then torque them. Specified Torque IFR7G11KS (NGK), SK22PR-M11S (DENSO): 25 N.m (2.5 kgf.m, 18 lbf.ft) Except IFR7G11KS (NGK), SK22PR-M11S (DENSO): 18 N.m (1.8 kgf.m, 13 lbf.ft)