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Audi 100 Idle and Spark Plugs

To: quattro@audifans.com
Subject: Audi 100 Idle and Spark Plugs
From: "Donald Scott" <donrscot@flash.net>
Date: Thu, 08 Jul 1999 11:04:45 -0500
References: <199907071856110760.01FE88D7@mail.flash.net>
Reply-To: donrscot@flash.net
Sender: owner-quattro@audifans.com

I recently changed my plugs on my 1989 100, non turbo, from single electrode Bosch platinum WR7DP  plugs with about 20k miles on them to the Bosch Super W7DTC copper with three electrodes. Ever since the idle has been very noticeably rougher. Is this really due to the change of plugs or is something else wrong? I also changed to mid range octane (90) gas. My driving is conservative due to both the battleship quality of the car and the active Round Rock and Austin (Texas) police. Thanks. Don Scott

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