2002 Acura RSX #4 cylinder misfire again! help!

2002 ACURA RSX
70,000 MILES • 4 CYL • FWD • MANUAL
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AIRMAN734
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So i threw a check engine light for a #4 cylinder misfire, so my first thought was to change the plugs(which i did) that didn't work, so then I replaced the ignition coil. The CEL went off but the car still had a bouncy idle, and now it came back on!!? Im tired of spending money any ideas?!!
Aug 3, 2009 at 7:31 AM
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2CARPRO JACK
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Check compression to be sure the engine is mechanically good.Then use carb cleaner, spray around the intake manifold on #4 to see if it changes, if so the intake may be leaking causing the misfire(lean miss).If it doesnt change the idle when you spray and compression is good, it may have a bad injector.If so th eplug will be much lighter in color when compared to the others
Aug 3, 2009 at 8:37 PM