Hi,

I have a 2019 Acura RDX SH-AWD 2.0L turbo with 98511 miles on it. I had an issue in the beginning where the car jerked when accelerating at fast speeds above 40mph. I eventually got a check engine light so I took it to a mechanic, and they did the ODM scan, and it showed an engine misfire and a coil. So they changed all the spark plugs and one coil. Everything was working fine until a month later, the issue came back. They did the ODM scan again, and it's showing no misfires, nor did I get any check engine light. Everyone is now puzzled. They changed my differential fluid, and the issue still continues., They checked axles, drive shaft, and suspension; everything is fine. So I decided to bite the bullet and take the car to the Acura dealership and have them do a full diagnostic. They told me the spark plugs and coils need to be changed. I am now very puzzled because I just changed the spark plugs and one coil a month ago. So the Acura mechanic asks me whether I use the OEM spark plugs and coil, and that's when it hits me. I remembered the previous mechanic had ordered the parts himself, and he had told me they would not be OEM parts as those are more expensive, and he would have to charge me more, but he guaranteed they would give the same results as the OEM part. So now I'm wondering if that's the issue; those sparkplugs are not giving enough power to the engine and that mechanic lied to me. I hope you can shed some light on this.