Check Engine Light and Stuttering While Driving on Honda Fit

The Honda Fit is known for sudden, poor drivability issues, as soon as 50,000 miles, such as:

• Loss of power
• Engine Stalling
• Stuttering at highway speed
• Check engine light intermittent or flashing
• "D4" light on intermittently or flashing
• OBD trouble code(s) P0300, P0301, P0302, P0303, and/or P0304

One or more ignition coils may fail unexpectedly, even though the code may clear.

The coil packs will cause engine misfires during normal operation, and must be replaced to ensure engine performance.

Cleaning and applying dielectric grease may help in very few cases.