Condition | Possible Cause | Action |
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Surges (Engine power variation under steady throttle or cruise. Feels like the vehicle speeds up and down with no change in the accelerator pedal.)
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Leaky or loosely connected high-tension cord
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Faulty spark plug (excess carbon deposits, improper gap, burned electrodes, etc.)
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Variable fuel pressure
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Kinky or damaged fuel hose and lines
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Faulty fuel pump (clogged fuel filter)
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Malfunctioning EGR valve
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Poor performance of MAF sensor
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Faulty fuel injector
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Faulty ECM
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