Question about Volkswagen Beetle

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Idles rough ,loss of power ,sounds like its running on 2 or 3 cyl. changed fuel filter no diff. maybe a bad coil, 2003 beetle 1.8 turbo 4 cyl

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  • rnieves65 Nov 12, 2008

    loss of power.Also radio works intermittently and battery drains consistently on my 2002 jetta gl 2.0 auto. Help pls

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I had this same problem on mt 2004 jetta. It had 85,000 miles on it. one day it bagan to idle rough but seemed fine when at higher sppeds/rpms. after a weekm I took it to the dealership and it turned out that a few of the coils/springs were shot. they also replaced my spark plugs, costing me about $550 total. But the car runs great again.

Posted on Nov 11, 2009

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Both coils do not fire on 1 and 4. Will start but only running on 2 cylinders. Could both coils be bad or should I look elsewhere?


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What causes kia optima 2003 rough idle intermitent loss of power during acceleration and backfiring, changed spark plugs, cable ,IG coils , fuel pump, injectors cleaned and still same problem, any hel


DTC P0131: Low voltage in oxygen sensor circuit (Bank 1, Sensor 1). Probable cause:
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93' cavalier, very rough running. Missing badly at all speeds and loads, including at idle in park. changed plugs and no change in symptons. Is this an injected motor (4 cyl)?


Yes it is fuel injected. If it runs but has no power there is a good chance that an ignition coil went bad and there would be no spark to two cylinders. Cylinders 1 and 4 are partners on the same coil and 2 and 3 are partners. Usually these cars if an injector goes bad they have an external leak.
You can try to listen to them by holding a screw driver to each on while its running but I don't think
that will be your problem anyway.Another giveaway for the coil could be a gas smell like it is partially flooded. When you changed the plugs were any of them wet with fuel ? There is also a chance that if the engine works ok at highway speeds that the egr valve is stuck open. This causes
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I have a 2003 Expedition 5.4L Triton. Two days ago, with low gas (38 miles to empty), engine started running rough. Code read P0302, misfire cyl. 2. Since it had 113K miles, I figured its time to change...


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1 Answer

MY 2002 honda s2000 has a rough idle its missfiring on 3 and 4 cyl. i changed the plugs im thinking maybe its the coils any sugestions? is it safe to drive also


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1 Answer

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1 Answer

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1 Answer

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1 Answer

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