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Answered 2007-02-18 17:25:11

Emissions controls, fuel/air mixture, timing, and transmission.

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No spark from ignition coil.Coil is new and still no spark for 1990 suburban?

I'd replace the ECM (electronic Control Module). These are often the problem on older GM vehicles. It's fairly simple to replace. It's located directly under the distributor cap and rotor. Costs about $60 for the part.

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Where is the reset button on a 1990 Chevrolet Celebrity stationwagon?

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