Hey guys, I have a 97 gsr motor in a 94 civic and I ran into a problem, I was hoping you guys could help cause I've searched but I couldn't find what I was looking for, my problem is the my injectors in cylinder #1 and #2 seem to stay open because its idling rough but when I disconnect fuel injector plug #1 or 2 nothing happens but if I disconnect #3 or #4 it will want to stall, I'm getting power to all 4 fuel injector connectors, and I already swapped the injectors from cylinders 3 and 4 into 1 and 2 to make sure it wasn't the injectors, but its still the same. All this happened when I installed my turbo setup, the injectors are RC 650 cc and I also have hondata s300, thanks guy I appreciate any help

 

Any suggestions?

 

Bump

 

Have you done a pulse test ? also when it does this rough idling is it ALL the time or just when the car is stationary ? i have/had something similar https://honda-tech.com/forums/showth...3139855&page=4 from post #83 to about 96(or so). is most likely an electrical vs "physical" problem one

 

Thanks I looked over that linked, very good information and I didn't do a pulse test I'll have to go buy one tomorrow so I can do the pulse test, but I did check the connectors with a test light with the key on and I have solid light from the test light on the injector connector

 

And the rough idle is most of the time, I can't really even drive it cause it'll stall on me

 

when you say "key on" do you mean in the 2(II) postion ? it must be done when the car is running just like the pulse test. and when you say connector you meant at the ECU right ?

 

how old are the RC's?

 

Sorry I meant the the key on 2(II) after the fuel pump primes, I also tried it when the car is on, and I haven't check them at the Ecu I checked them at the fuel rail

 

They have less the 300 miles on them, I had them running before I installed the turbo

 

I checked the pulse today and injector #1 brown wire and injector #2 red wire get very dim pulses at the ecu pins and the other 2 injectors get bright pulses, what could it be?

 

Maybe a little backstory. This started happening when?