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G3 Wave

Hello there. Typically a sputtering engine is an indication of a misfiring cylinder. There are many component failures that can cause this issue, ranging from a damaged or worn out spark plug, spark plug wire, coil, distributor, rotor or other...

The pcv valve may be stuck open or fell part inside causing excessive suction in the engine and high idles. Have the crankcase ventilation system checked for problems.