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Re: stumble with MSD?
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Posted by kenS [Email] (#606) [Profile/Gallery] (more from kenS) on Tue, 17 Jun 2003 16:27:14 Share Post by Email
In Reply to: Re: What are the symptoms of a bad coil? nm, chrisx, Tue, 17 Jun 2003 13:38:48
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interesting! I too have experienced a cold stumble with the MSD6AL + blaster coil, at around 2500pm. It only happens when the engine is stone cold, does it for maybe 1-2 minutes, then goes away and doesn't come back until the next cold start. I don't think it's related to the O2 sensor, since it stumbles even after that is cycling in closed loop. When I switched back to the regular ignition + bosch coil, the stumble goes away. After that first 2 minutes, though, the MSD system works very smoothly.... this is on a 87 900T, minimally mod'd.

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