Well heres the story i sm out of ideas so maybe someone can share their opinion
Car:
92 cx
JDM B18C
Skunk 2 cams and valves, springs, retainers
sk2 mani
stock injectors
stock FPR
chipped p28 running crome


Ok well i drove the hatch to work this morning, no problems everything was normal. Come 5:00 get in the car and it cranks like crazy but will not fire or even pretend to fire. After trying a few things with limited tool selection we pull it home. So i get it home i check the coil, specs out ok, check the ICM checks out fine. Test to see what the spark looks like and it lookss strong as can be. So we move on to the fuel and the injectors smell of fuel a little but nont enough to convince me so we see if the rail is getting pressure and it is. So we decide to change out the coil and icm out of desperation and still no go as suspected. and finally we hook up an led to each injector clip individually to find out that #4 isnt firing BUT the "firing" wire is solid all the way to the ECU.. Anyways I would think it would run on 3 cyl. so my next step is to find a stock gsr ecu i can test. but other than that i am all out of ideas. If you have run into anything like this please post up. I just dont know its so wierd TIA

 

update: timing is fine, and i tried an LS ecu because it was the only thing i could get and the fuel pump wont prime with it.

 

so you are getting fuel right? have you cracked the top bolt on your fuel filter and turned the key on to check if its sprayed out gas. if so id swap out the injectors, if not id change the main relay

 

I just now got a main relay to try. We cracked the bolt loose and it sprayed but we didnt crank it. i will for sure try that if the relay doesnt work. oh and the 4th injector DOES fire now. and i swapped ecus and still wouldnt fire

 

Main relay is fine so i am pretty much out of ideas after injectors

 

ok guys so i have started getting into the injector system because they do not fire and the injectors are supposed to be getting battery voltage but for some reason I am only getting 8.75V at each injector. It makes no sense at all i have checked all the grounds with a volt meter and they are ALL good. post up i have no idea anymore.