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Alternator and ECU switchability 200 1984

posted by  Volvord84 on  Thu Apr 4 08:42 CST 2002
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You should be able to swap out the regulator/brush set with a new one. Aftermarket reg./brush set's should run 15 to 20 bucks, and the Bosch 2 to 3 times as much.

As far as the ECU goes, an '83 should be a "503" with a single wire o2 sensor. The '84 should be a "510" with a 3 wire o2 sensor. If your car is wired for a 3 wire o2 sensor, keep the "510" in it. Your other option is to switch the o2 sensor, mass air flow meter, and ECU from the '83 to the '84.
Either year car could have a "California emissions" set up, and be wired for the heated three wire o2. Don't swap anything if the thought of the smog police will make you loose sleep.






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