I have a 93 mx6. My problem is that while I'm driving my car the check engine light tends to turn on. This may not sound odd but it is, you see, the only time the light comes on is when I drive over those relectors that divide the lanes on the freeway or when drive over a sudden dip in the road. When the check engine light is activated the engine stalls for a split second, performance is not affected with the light on with the exception of the sudden stall. Does any one have any ideas...I have checked the computer codes that showed a bad crankshaft positioning sensor, which I replaced and then erased, but the same code continues to show up. Any information will be appriciated...mazdart.