I know it's no big deal, but it shouldn't be happening after only 3400 miles. The only reason I care is because you can see it if you drive behind me.
Mine were rusted when I got them along with almost every other MSP I've seen. I know it happens because they bring the cars over on ships, but the rust really takes a lot away from a car that otherwise looks great. I just think it's something the dealers should fix before they sell the car instead of making us come back in & get it done on our own.
I only mentioned this because up until now I haven't heard it & I was hoping that maybe I wouldn't get it. People have said that it's something that develops, so I'm worried that mine might just be starting. Obviously I can't take it in because there is no REAL fix for it yet.
I know I did my plugs right...I never said otherwise. However, it's the only explanation I can come up with for the rough idle. When I get my MBC, I'm going to put them back in, but I'd like to get someone who has done theirs to double check mine. For now, I am changing back to stock just to be safe. The NGK BKR7Es aren't specified for this car, but there are like 100+ people on here who have them & have no problems. I never said it was Mazda's fault either...that's why I'm not asking them to fix it.
Most new cars DON'T have these kinds of problems. I still love my car & I've never regretted buying it, but it's just annoying. This is the 1st time that I've even mentioned these problems, so the only person whining here is you. Please do everyone a favor & stop acting like you are all high & mighty. I only listed my problems in case other people had the same ones.