running on 3 cylinders...help!!!!

[TomahawkJack]

Im stumped....my ca is running on 3 cylinders, # 2 isnt firing. its getting spark, it has compression, and i swapped out the fuel injector. any ideas or tests anyone can suggest?? any help is super appreciated as this is my daily.
thanks in advance guys n girls

[themadscientist]

it might not be the injector, it could be the injector driver. put your finger on the injector when the car is running, can you feel the solenoid ticking? No? shut off the engine and unplug the plug and stick it on another injector (if it will reach) and start the engine; does the new injector that worked before now not work?

[TomahawkJack]

hmm i will have to try that as soon as i get out of work, thanks alot!!

[boost_boy]

The injector maybe sticking. You can manually prime the injector with 12 volts (positive and negative to the terminals). Most times it works. Good luck with that and let us know how it goes.

[ilovecoupes]

i had this problem before. try swapping injectors with another cylinder. if the problem changes; the injector is probably the culprut. if the problem stays on the cylinder its most likely a wiring issue.