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Q: Rough idle on start, doesn't seem to have any power at all. on 1994 Mazda B3000

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
Changed plugs, wires, rotor button, cap, pcv valve, egr valve, what else would create what I think is a power drain?
No car image 94a1663db56199c5353592009e34aaa51078a2469bed068bb8d6f0ba43accf97
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Start with the basics, check the compression and perhaps do a cylinder leakage test to ensure the engine is mechanically OK. Perhaps verify fuel pressure and fuel delivery volume. Check for a restricted exhaust and "water test" the ignition system with the engine running to make sure the ignition insulation is good. Check for engine vacuum leaks around the intake manifold. Has the engine run hot or been loosing coolant? Could the head gasket be leaking? To many possibilities just for me to guess without being able to look at the car first hand.
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