Hi all im new got a g reg 1.6 xr3i cab took of the head replaced the head gasket put it all back together. Now it runs on 3 also had to make my own inlet gasket (mills not open lol). Sounds like the compression is good got good spark ect but when i take no 3 injector plug off-on it makes no difrence? bad injector?. Could it also be my hand made cupbord gasket? fouling the injector. I was told that if it was if i use carb cleaner rev it up should run on all 4 i didetn have any left so he saisd i could try wd40 but same only 3 lol i think carb cleaner would have been better mind u any help would be gr8 thx

Dan