False Intake Air Entry

If unmeasured air enters engines equipped with L-type injection, they may exhibit lean surges, misfire and rough idle. Lean operating conditions can also cause increases in hydrocarbons, due to misfire, and in NOx due to leaner air/fuel ratios, increased combustion temperatures and decreased reduction catalyst efficiency.

Engines equipped with D-type injection will exhibit an elevated engine idle speed if unmeasured air enters the induction system. Generally, this will not cause exhaust emissions to increase significantly.

Simple Car Care Tips and Advice

Simple Car Care Tips and Advice

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