how to fix P0302 code on Honda Accord 8th Generation (2008-2012)

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the negative battery cable to prevent electrical shorts.
• Ensure the engine is cool before starting any work.

2. Replace Spark Plug

• Remove the ignition coil from cylinder 2:
  • Use a socket set to remove the bolts securing the coil.
  • Carefully pull the coil out of the spark plug hole.
• Remove the spark plug:
  • Use a spark plug socket and ratchet to unscrew the old spark plug.
• Install the new spark plug:
  • Ensure the gap is set to manufacturer specifications (typically 0.044 inches for Honda).
  • Torque the spark plug to the recommended specification (usually around 13 lb-ft).

3. Replace Ignition Coil

• If the ignition coil is faulty, replace it:
  • Install the new ignition coil in cylinder 2.
  • Secure it with the bolts and reconnect the electrical connector.

4. Check Fuel Injector

• If the injector is suspected to be faulty:
  • Disconnect the fuel injector connector.
  • Use a noid light to check for proper electrical signal to the injector.
  • If no signal is detected, further diagnose the wiring or ECM.
  • If the injector is faulty, remove it and replace it with a new one.

5. Reassemble and Reconnect

• Reconnect the negative battery cable.
• Start the engine and check for irregularities or new codes.