You did not list the right engine size. Code 320 refers to the pickup assembly in the distributor. If your engine has a distributor, remove the cap and rotor, then the pickup assembly is the disc sitting on top with the wires coming out of it. There is no easy way to test it. Replacing it is the best test. In the rare event this does not solve the problem, look at the wiring harness for wires rubbed through, and at the connector terminals for signs of corrosion.
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Sunday, July 16th, 2017 AT 7:55 PM