My truck a 1994 Mazda b3000 has been having a problem with a rough idle and why seems to be a bad misfire when accelerating through 3000rpm after that it’s fine. When the ac is on it nearly kills the truck and is inputs drive. I’ve replaced the spark plugs, wires, and distributor. Did a compression clench and all cylinders were at 150. What could be causing this? Anything may help at this point
What makes this problem better or worse?
No
How long has your 1994 Mazda B3000 had this problem?
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