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Re: Ignition Work Done - Erratic Timing Readings
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Posted by Matt Grimes [Email] (#2198) [Profile/Gallery] (more from Matt Grimes) on Wed, 16 Aug 2017 18:51:41 Share Post by Email
In Reply to: Re: Ignition Work Done - except for timing, Matt Grimes [Profile/Gallery] , Mon, 14 Aug 2017 09:13:01
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I was able to find the opening and check the timing. My first look gave a reading around 5 deg. Then it jumped to 15 deg...and back...and forth.

What would cause the timing reading to fluctuate like that? I have as I mentioned earlier just replaced the plugs, wires, rotor and distributor cap.

I don't notice any irregularities when I drive the car other than when sitting at a stop light, I'll get a sudden drop in rpm. Maybe 200rpm...but it immediately recovers and may not do it again until the next stop light. It did this before I completed the ignition work mentioned above and still does. 
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900 Turbo Convertible - 1991, Automatic
Enhancements: Swedish Dynamics Stage 4 Red Series APC, Fuel injector set, and EPROM(Fuel "Chip") for the BOSCH 2.4 LH fuel management system!
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Colorado Springs, CO
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