We’ll cover this one a bit more in the next GRM, but recently our Miata was nearly choked to death. A stutter became a miss and then became a problem.
The culprit? An old, gross air filter. The original foam filter served us well for about six years in our Jackson Racing cold-air kit. And yes, we did clean it—but that was probably a couple of miles ago.
The old filter looked solid at first, but it easily came apart with just a little finger pressure. (We did the damage seen in the photo.)
A new filter was ordered from Moss Motors, and the car is much happier now.
Have you checked your filter lately?
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