H22 injector trouble. Possibly.

[ib042129]

I had problems with the injectors on my H22 so I got new ones and
a new chip to go with them from Xenocron, but I still have problems.

1)The new chip throws a code right away before even starting, and I can’t
read it for some reason.
2)The engine is still a little rough, the idle is high and a little unstable, but not
as much as when one of the injectors was not working.
3)The exhaust pipe from cylinder 3 is much colder than all others.
4)The rest of the pipes get really hot FAST!
5)The engine is running really rich.

I have ordered a fuel pressure regulator a while ago. It is still to arrive.
I will also replace distributor cap and rotor and spark plug wires.
This might fix the running too rich problem, but I’m not sure
Why cylinder 3 is so different.

I pulled the spark plug from it, and it was dirty, so I'm getting fuel.
The injector is brand new.
The wiring for the injectro seems to be ok. Goes to the right socket in the ECU. (Actually should the other wire go directly to ground? Zero resistance with the chassis of the car?)

I'm really confused at how to fix it.