Possible causes – Faulty spark plug 11– Clogged or faulty fuel injector 11– Faulty ignition coil 11– Fuel injector 11 harness is open or shorted– Fuel injector 11 circuit poor electrical connection– Ignition coil 11 harness is open or shorted– Ignition coil 11 circuit poor electrical connection– Insufficient cylinder 11 compression– Incorrect fuel pressure– Intake…