Check the timing if you haven't. If that is wrong, it won't idle correctly. 10 BTDC with the SPOUT connector unplugged.
The idle speed can be adjusted if its too low. The throttle kicker on the side of the CFI unit has a screw at the bottom of it which will move the whole unit. Thats the low speed idle adjust.
Might be worth testing the throttle position sensor too. Thats on the passenger side, sort of buried with the high idle linkage parts. Probe from the black to the green wire and verify you get about 1v with the throttle closed. It should be between 0.85 and 1.15 volts if I remember right. It should smoothly increase to about 4.5 volts with the throttle full open. If it has dead spots or doesn't respond, the sensor is bad.
Have you checked this for codes? That might also point you in the right direction.
The idle speed can be adjusted if its too low. The throttle kicker on the side of the CFI unit has a screw at the bottom of it which will move the whole unit. Thats the low speed idle adjust.
Might be worth testing the throttle position sensor too. Thats on the passenger side, sort of buried with the high idle linkage parts. Probe from the black to the green wire and verify you get about 1v with the throttle closed. It should be between 0.85 and 1.15 volts if I remember right. It should smoothly increase to about 4.5 volts with the throttle full open. If it has dead spots or doesn't respond, the sensor is bad.
Have you checked this for codes? That might also point you in the right direction.
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