ECU, Wiring, Sensors
User avatar
By york62
#40400 Just wondering if anyone has ever heard of a way to check if an injector is good or bad?
User avatar
By BAXTER_EJ1
#40425 Haynes says to put a stethoscope to the injector and listening to "pinging" or "clicking" sounds, if there's no noise at all it's probably shot, other than that I'm not sure on how to check on the "quality" of the injector, only if it's working or not.

In place of a stethoscope you can put your ear to a screwdriver and place it against the injector.
User avatar
By york62
#40427 thats a good tip, what i did tho was just took a small 9volt battery and connected it to the injectors plug prongs, and listened for the sound. they both "clicked" or "pinged" but i'm still getting a code for injector. I think a friend of mine has a set. i'm going to try them in it then go from there.
User avatar
By ChicagoMike
#40430 If you have access to a multimeter, set it to 10 ohms, unplug the injector harness and test the injector. A good injector will read about 3 ohms.
User avatar
By york62
#40448
ChicagoMike wrote:If you have access to a multimeter, set it to 10 ohms, unplug the injector harness and test the injector. A good injector will read about 3 ohms.


Thats exactly what i was looking for!
User avatar
By BAXTER_EJ1
#40449 < Fail :cry: haha
User avatar
By york62
#40452
BAXTER_EJ1 wrote:< Fail :cry: haha


no way man, at least you made an effort! thank you!
User avatar
By ChicagoMike
#40456
BAXTER_EJ1 wrote:< Fail :cry: haha


You didnt fail, I was gonna tell him to take a log screwdriver and put it against the injector and listen to the end of the screwdriver for the clicking. :thumb:
User avatar
By BAXTER_EJ1
#40457 Haha thanks guys :oops: :woot:
User avatar
By york62
#40474 Well when i hook the multi meter up to the injector that i think is bad( the top one) i get a 1.1 ohms, and with the lower injector i get a reading of 7.9 ohms.

I can imagine that the reading on the lower injector is so much higher because of it being the secondary injector.

BTW its for my 88 civic duel point injection.
User avatar
By ChicagoMike
#40475 1.1 is pretty low. :thumbdown:
User avatar
By york62
#40478
ChicagoMike wrote:1.1 is pretty low. :thumbdown:


Thats what i thought, a friend of mine is going to give me a few of his injectors that he has laying around to see if its the problem.

Thanks for the help guys. All tho its not over yet.
User avatar
By KRYSTED9354
#43446 whick cable do i hook up the meter of the injector 2 ?
User avatar
By KRYSTED9354
#43455 both oh on the tip of the sensor right? ok thanks