93 240sx 2.4 #2 & #3 fuel injectors are not working

[kokomoscalls]

i just put a head gasket on my 240 and now the injectors for cylinders 2&3 are not working at all .. i can get it started and it will run a little on the other two cylinders. i checked the grounds i saw and they are all good that i can see .. one grond was on the front side of the head and one on the back side.. is there anyother gorunds?... i dotn have a noid light can i check this anyother way with out one? does anyone not what the problem might be....thanks for your help
Modified by kokomoscalls at 7:46 AM 10/23/2006

[vancouverbc]

Ground is supplied by 4 separate connections to the ecu. Put a known working injector into 2 or 3. If it works you know your problem is the injectors in 2 and 3.

[kokomoscalls]

what if it isnt the injector then what should i do .. where is the four ground at maybe i should check them... i just dont understand though because it ran before the car overheated and blowed the head gasket

[vancouverbc]

The grounds are supplied by the ecu so there are no grounds to check except maybe the ground to the ecu.

I dont know anything about the mechanical side. Your injectors are likely not the problem.

[kokomoscalls]

do you think that two injectors would just go bad at the same time? are there any fuses for them anywhere?

[vancouverbc]

There is a fuse link but it supplies power to all 4 injectors so it is fine.Check the condition of spark plugs, etc

[kokomoscalls]

spark plugs are brand new..... so if the other two injectors are working its not the fuse link and the only grounds for the injectors are through the pcm.. its looking like the injectors are bad... i am going to switch the injectors around in the morning and see if they work on a different cylinder... i just dont know what could be causining this problem it ran before the head gasjet blew and i never took the injectors out of the intake or anything.. i just unplugged them .... the spark plugs are brand new and they are getting spark and i never messed wirth the pcm to lose a ground to any of them .... do you think a delarship could give me info on this problem or does anyone have a number i could call if i cant find the problem.....thanks