What Causes High Hc On Smog Test?
What Causes High Hc On Smog Test? Ignition defects including dirty spark plugs, leaking or open-circuited spark plugs or wires, or defective ignition coils can all result in a shortage of spark energy. Any shortage of spark energy may cause high HC emissions. If the spark occurs at the wrong time, incomplete combustion and high … Continue reading What Causes High Hc On Smog Test?
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