The spark plugs had approx 100,000KM on them, vehicle had almost 318,000KM.
Assuming that the NGK plugs I ordered from Amazon were pre-gapped, I put them in and forgot about it. I noticed a very light stuttering, at low RPM, using a very low throttle position. As soon as you were to increase the throttle in that scenario, the stuttering went away. Eventually, the CEL came on, so I pulled the plugs out to check the gap. They were all at around 0.030 (OEM is 0.044) - So, I gapped them all, and the stuttering went away!
Assuming that the NGK plugs I ordered from Amazon were pre-gapped, I put them in and forgot about it. I noticed a very light stuttering, at low RPM, using a very low throttle position. As soon as you were to increase the throttle in that scenario, the stuttering went away. Eventually, the CEL came on, so I pulled the plugs out to check the gap. They were all at around 0.030 (OEM is 0.044) - So, I gapped them all, and the stuttering went away!