Injector sprays constantly

[SRpetey]

When i turn the ingnition to ON the #2 injector in my SR20det sprays the fuel constantly and floods the cylinder. if i unplug it doesnt happen. Does this mean my ECU is bad and is always sending a signal to injector #2

[anton1o]

I wouldnt jump to that conclusion but have you tried any form of trouble shooting?

Moving the injector to a different spot for instance?

[importdude]

injector is stuck open
replace

ecu only primes rail no fuel should come out of injectors until u crank/start

[SRpetey]

Originally Posted by anton1o

I wouldnt jump to that conclusion but have you tried any form of trouble shooting?

Moving the injector to a different spot for instance?

Originally Posted by importdude

injector is stuck open
replace

ecu only primes rail no fuel should come out of injectors until u crank/start

okey i did some trouble shooting. I swaped injectors from another cylinder and same problem. So the injectors are fine. The wiring is okey too.

The yellow/black wire that signals the #2 injector is being grounded at all times by the ECU. Even when the ignition is on off. I even used the plug from injector two and plug it to #3(the car was off n the rail was off) and it does the same thing.

Does this mean that i have to replace my ECU or is there a Fix for this problem

[importdude]

test it
fsm

[240sxrb25]

you have some sort of fueling issue

[SRpetey]

No its the ECU

[jspaeth]

Check the ground signal wire from that injector clip for continuity with the chassis to see if the wire itself is grounding out on the chassis. If not, then something internal to the ECU is causing the problem most likely....

[nismoman]

What he said ^^^ don't throw away the ecu just yet!

[SRpetey]

Originally Posted by jspaeth

Check the ground signal wire from that injector clip for continuity with the chassis to see if the wire itself is grounding out on the chassis. If not, then something internal to the ECU is causing the problem most likely....

Originally Posted by nismoman

What he said ^^^ don't throw away the ecu just yet!

Yeah thats what I did. I unplugged the ecu hardness and the injector at the plug. Then I checked the injector plug and its not grounded. It's only grounded when I plug back the ecu.