1999 VOLKSWAGEN BEETLE
214,000 MILES
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I have a 99 vw beetle 2.0. I went on a trip drove 1200 miles in a week. But before I went I had valve cover gasket replaced. The mechanic broke the intake hose while taking it off so he replaced it with a rubber hose. Needless to say when on my way home my CEL came on. Well, took to Advanced auto store they checked it and said misfiring #4 cylinder. I had intake hose replaced spark plugs and wires even a oil change. The CEL still on and still reading same thing? I need help! What can it be? It's running rough!
Apr 5, 2013 at 9:54 AM
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ASEMASTER6371
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nothing to do with the hose.

check compression, vacuum leaks, injector or wiring

Roy
Apr 5, 2013 at 9:55 AM
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EXOVCDS
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If ignition coil is still original, it's probably cracked from age and causing the misfire.

You can check the coil with a long screwdriver attached to a grounded jumper wire:

http://www.youtube.com/watch?v=DZylCAFSSJw

Thomas
Apr 5, 2013 at 11:21 AM