98 Honda Accord EX Coupe, weird problems
 

So i recently bought a 98 honda accord ex coupe 5speed 4cyl v-tec with 164k on it

since i bought it i have replaced

v-tech solenoid
4 new fuel injectors
4 spark plugs
fuel pump assembly
speedo censor

and the car was throwing a speedo censor and v-tech code before i replaced them and once i replaced them its now throwing a cyl 2 and cyl 3 and a random miss fire. Also when i come to a stop sign or a red light i go to slow down and the rpms will drop to the point of almost stalling and then it will bring its self back up to 900 and idle fine, then when i first start it up it idles really high like 2000 rpms i have to rev the engine a few times for it to slowly go back to 900, for the life of me i cant figure out this problem please help im new to this whole honda thing.... thank you!!

ps.. my driver side automatic seat broke the other day as i was driving the left side i guess went through the bracket any suggestions on how to fix this issue?

I see the plugs were replaced, don't know what brand. I would double check those. Then I'd ask when the cap, rotor, and wires were inspected or replaced.

Plug wires can can weird issues also.

my honda accord is a ex 4cyl v-tech

and im thinking it might be the throtle postioning sensor? idk exactly but this week im replacing my spark plug wires,the distriputer cap and then a rellay to see if that will fix it... oh and a brand new battery, im puzzled to what the problem is cause lately when i start it up it idols really high and then i have to rev it up a few times to get it back down to 900 rpms and then like ive said before sometimes when i stop or even rev up it will go down in rpms and almost wanna die till it catches itself, so weird!!!