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Strange tach behavior/ignition problem?
Posted by Sjer (more from Sjer) on Tue, 6 Sep 2005 13:52:54
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Car ran fine this morning and this afternoon, just as I was accelerating my '94 900 turbo conv to highway speed, the motor started running very rough and the tach went berserk. It jumped erratically between 2000 to 4000 rpms. Actual speed was held at about 45 mph, so the tach was just getting a bad signal. The motor ran rough on the highway for 10 minutes until I got off the highway and slowed to a stop. It idled fine, and when I accelerated, the motor ran fine as if nothing had ever happened. Oddly enough, the CEL never came on. Ignition components (dist cap, rotor, wires, and plugs) are only 3 months old. Anyone know what's going on?
posted by 206.148.20...
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