1988 Honda Crx Hf Out 4cylinders Only 2 Cylinders Firing Correctly Changed

1988 HONDA CRX
283,000 MILES
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I have a 1988 Honda CRX HF, And out of the 4cylinders i only have 2 cylinders firing correctly. I have changed the Plugs, Wires, and the Distributer Cap and button None of these fixed the problem it is still not firing correctly on the 2 inner cylinders. What could be the problem ?

(Could it be dirty ECM causing it to short out the 2 inner Plugs that are not firing Correctly)
Mar 25, 2013 at 3:16 AM
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RANDICO
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If you have spark at one cylinder you will spark at all cylinder, so you need to do a compression test, or better yet disable the spark at the distributor and crank the engine over listen to the engine is it smooth and rhythmic? Or does it crank with a high then low uneven sound? If it does you have a compression problem.
Mar 25, 2013 at 5:07 AM
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KHLOW2008
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Check the PCV valve if the compression test pans out.
Mar 25, 2013 at 8:37 PM
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