Car running rich and missing makes all 4 plugs fouled

[s13q]

Hey guys

I recently changed my fuel rail (same stock unit) and cylinder 1 became flooded due to the o ring being bent.

Anyways I fixed that now the car is running really bad.

All 4 plugs become fouled instantly, runs rich, timing seems out and very lumpy idle.

I checked the ECU and it's throwing a code 34 for knock sensor.

Not sure why but is this the problem?

I wiped the code so now it's code 55 (all good) but just don't want to damage anything if I start it again.

I primed the fuel pump and all the cylinders remained dry, so I guess it's not the injectors leaking?

All fuel lines and what not are correct. Injectors were fine before this.

Would you guys think maybe when the cylinder got flooded and I tried to start it the ecu freaked out and entered the knock sensor? = make the car run bad and just stayed like that?

Any advice would be great.

Engine is a SR20DET

[s13q]

Bump

Any help would be great