Hello, I recently did an F23A4 swap into my 91 accord coupe after sadly blowing my previous motor, It seems to run okay minus the IACV code its throwing I've replaced a fairly small list of parts, IAT sensor, Thermostat, TPS, fuel filter, will also be doing fuel pressure regulator and damper tomorrow. I did some reading about differences between the A1 and A4 before doing this swap and couldn't find an F23A4 specific guide so I followed one for an F23A1 did all the wiring changes removed resistor box moved MAP over 94 EX Dizzy and ECU from a F22b1 and I just cant get the car to behave at RPMS between roughly 1100 and 1800. I've been looking for an answer or help in anyway possible, it also bounces RPM at those previously listed while try ng to drive and causes the car to buck and thrash me back and forth. I've been reading all kinds of forums and posts about weird idle issues and nothing seems to work so I'm hoping someone who has more experience and can at the very least point me in the correct direction. the car seems to idle fine and behave correctly above 2k RPMS so I'm not sure what's going on at all. any help would be greatly appreciated. Also I apologize if anything isnt correctly adjusted for forums this is my first ever post to a forum at all. Small side note it was running rich I think? the spark plugs were covered in what looked like soot before I replaced them after already replacing a dead one.
Attached video of how its behaving.
https://youtube.com/shorts/z9cPDeWNo...6FX858PfAe4ELy
*Edit* Image of the spark plugs.
https://imgur.com/i1vjrXF
Attached video of how its behaving.
https://youtube.com/shorts/z9cPDeWNo...6FX858PfAe4ELy
*Edit* Image of the spark plugs.
https://imgur.com/i1vjrXF
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