Mar 292017
 

2000 Toyota CorollaHave to give gas to start and continue running. I have cleaned idle control and changed plugs and coil packs. Reads cylinder 2&4 misfires. It has been sitting unstarted for a year. Previous owner said it started sputtering going up a hill and died. Has been sitting since.


RESPONSE

One possibility is the Idle Air Control may need replaced. The most likely cause though would be a faulty intake gasket or blown head gasket. You can test for both. The most common being the intake gasket.

Toyota Code P0302 Cylinder 2 Misfire Detected

Code P0302 means that cylinder 2 misfire is occurring or is randomly misfiring. Start by checking for intake leaks. If no leaks are found the next step is to replace the spark plugs on cylinder 2 or all effected cylinders.

Code P0302 Possible causes

  • Faulty spark plug 2
  • Clogged or faulty fuel injector 2
  • Faulty ignition coil 2
  • Fuel injector 2 harness is open or shorted
  • Fuel injector 2 circuit poor electrical connection
  • Ignition coil 2 harness is open or shorted
  • Ignition coil 2 circuit poor electrical connection
  • Insufficient cylinder 2 compression
  • Incorrect fuel pressure
  • Intake air leak

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