injector voltage ???????????

bill302

Active Member
Nov 2, 2005
2,131
1
46
alabama,gadsden
i'm installing a cobra intake in my 95 gt while i do this i'm going to install new o-rings and filters in my injectors and clean the injectors internally in order to do this i need to activate the injectors to blow cleaner through them....my question is do i just wire the injector with a switch to 12 volts off the battery to activate????????
 
Bill, I'd make a test rig that uses a momentary switch on the ground side of the wiring you rig together for this. This would function like it does on the car and is more stable than switching 12 volts.

On a related note, I'm about to make a device that will clean injectors in the car. I'm going to use an air/oil separator (like we use on our PCV's). It will connect to the Schrader valve and hold fuel injector cleaner and petrol. Disable the FP and let the car run off the contents in the separator. Sounds like a good way for me to start a fire. :rlaugh: I'll be curious to see how it works.

Good luck bud.
 
Bill, I'd make a test rig that uses a momentary switch on the ground side of the wiring you rig together for this. This would function like it does on the car and is more stable than switching 12 volts.

On a related note, I'm about to make a device that will clean injectors in the car. I'm going to use an air/oil separator (like we use on our PCV's). It will connect to the Schrader valve and hold fuel injector cleaner and petrol. Disable the FP and let the car run off the contents in the separator. Sounds like a good way for me to start a fire. :rlaugh: I'll be curious to see how it works.

Good luck bud.

what your saying is run off a 12v source to the injector plugin and run the ground wire from the injector plugin to a momentary switch then to ground and activate injector with momentary switch???
 
what your saying is run off a 12v source to the injector plugin and run the ground wire from the injector plugin to a momentary switch then to ground and activate injector with momentary switch???

You got it Bill. That's how it is done on the car - injectors get constant 12 volts when the key is on. The injector drivers inside the computer send a ground pulse to the injector and actually energize it. I see no reason to not do it the same way - switching ground on and off is a really clean way to do things (I'd rather not switch 12 volts on and off). It should work well brah. I'm sure you've seen it but the dude on FFI has a write-up for cleaning injectors. It's a pretty good article.

Good luck Bill.
 
You got it Bill. That's how it is done on the car - injectors get constant 12 volts when the key is on. The injector drivers inside the computer send a ground pulse to the injector and actually energize it. I see no reason to not do it the same way - switching ground on and off is a really clean way to do things (I'd rather not switch 12 volts on and off). It should work well brah. I'm sure you've seen it but the dude on FFI has a write-up for cleaning injectors. It's a pretty good article.

Good luck Bill.

thanks for the quick replies...i have not seen the article on ffi can you give me a link...thanks