I HAVE A Z6 BLOCK AND A Y7 HEAD
I HAVE DONE THIS SWAP BEFORE BUT FOR SUM REASON I HAVE A HORRIBLE MISSFIRE. THE ECU READS CODE 74 THAT IS MISSFIRE IN NO 4 CYLINDER
THE NO 1 CYLINDER IS RUNNING THE MOTOR IT RUNS REALLY ROUGH AND BACKFIRES
TIMING IS GOOD
ALL SENSORS ARE GOOD
i THINK IT IS THE DIZZY.

THANKS PEOPLE

 

Sparkplug wires in the right order?

 

if it was the wires in the wrong order there would be two cylinders missing.. check your plugs, then check your dizzy.. it mite be that one wire being bad.. what you wanna do is take a spray bottle and spray the wire with water.. if it gets worse then it is the wire.. more than likely it is they plug or the dizzy though.... if anyother problems pm me....

 

thanks guys that is what it was im an idiot