My infinity ran really smooth for 4 days then it is back to sputtering. The code says it's the same port we just changed. However, we did not change all of the spark plugs. I've ordered those. I have it parked in the garage and not taking a chance on driving it until all plugs are changed . We are currently waiting for those parts to arrive. I'll come back and rate this product as soon as it has had every opportunity to work correctly.
Verified purchase: YesCondition: New
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