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Old 09-15-2002, 02:19 AM   #1
Scooby Guru
Member#: 1804
Join Date: Jul 2000
Chapter/Region: SCIC
Location: Irvine
Default Engine vibrating, check engine light on

My car is vibrating like crazy on idle. And the CHECK ENGINE light is flashing. What's the problem? My fuel tank is full. Air filter, somewhat dirty. I'm sure I tightened fuel cap all the way.

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Last edited by codemunky; 09-15-2002 at 02:30 AM.
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Old 09-15-2002, 06:03 AM   #2
Scooby Newbie
Member#: 10135
Join Date: Sep 2001
platinum Silver


uh oh, dealer time. If it's flashing that means somethng is really messed up. Perhaps the engine is misfiring? It happened to me the first week I got my car, the coil plug fall off a spark plug.
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Old 09-15-2002, 07:50 AM   #3
Trust no one
Member#: 11170
Join Date: Oct 2001
Chapter/Region: Tri-State
Location: NYC
02 WRX
15 WRX/05 GTO


A flashing CEL means a misfire is being detected NOW. You should not drive in this condition especially if it's bad enough that you can feel it.
First thing to check is plug wires, make sure they are all tight and in good shape. Could also be a bad/fouled plug or a bad coil pack. If nothing visually looks wrong you can pull the plugs out to see if one shows signs of fouling or improper burning.
Also watch the engine as it idles at night, if there is a coil or wire arcing you should be able to see it.
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