Easy step by step guide on how to tune up an automotive engine,
though each engine configuration is different the process is similar.
Difficulty Scale: 5 of 10
Begin with the car on level ground, in park with the emergency brake set.
Step 1 - Many times an engine tune up can be accompanied
by a check engine or service engine soon light. If this is the case, connect a
trouble code reader to
retrieve diagnostic trouble codes to isolate the misfiring cylinder or malfunctioning