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Frequency Valve
Have you verified that the frequency valve is working? It has a very pronounced buzz when functioning. It doesn't work till the engine is running or you jump the fuel pump relay, ignition key on. A brief search will give you the procedure for jumping the relay. I just use a couple roofing nails and a alligator clip jump wire. I think you jump 87a and 30. I always double check my reference first though.
If your car was running with the ECU unplugged, they may have richened the fuel mix to compensate for the lack of cold start enriching. Then as it warms, the engine is way too rich.
Just a thought.
Also check out Jim's "CIS Primer". It covers about all of what ails us.
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Chris
'83 Super Carrera
......There are many like it, but this one is mine.
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