i just did a swap on my 95 accord and when i first started up it idle great. then we took it for a test drive and died. started it up and drove it back and check comprision and all cylinder are at 180,it got spark and it got fuel. so we took the plugs out of the cylinder and 2,3,4 idles rougher but number 1 stayed the same? what could it be??

 

just happend to me last night code 9 which is the ROUGH IDLE DO TO CYLINDER 1
distibutor gone cause the bering broke it happend to me also

 

 

bad/clogged injector perhaps? try switching the injector from cyl 1 & 2 and see if the problem stays w/ cylinder 1 or moves to 2.

 

still happen in cyl 1

 

bad plug ? bad plug wire ? injector not firing ( no power to injector ) # 1 cylinder valves too tight ?

did you try swapping plugs with a different cylinder ?? if so and no change

try a different plug wire , if no change

stick a screrwdriver on injector and make sure you hear it click while car is running ,, if ok

you said compression was all even ,,,
I would then next chk the valve lash

 

did a tune up replaced all of those same thing?
is there some thing that could be wrong with the wiring harness?

 

not much wiring that could make 1 cylinder misfire.....

you got plug wire

you got injector wiring

did you try all the things that were adviced to you???
You cannot skip 1 ... try them all , do the eliminating process,