Author Topic: Injector issues  (Read 2844 times)

Froos

  • Sr. Member
  • ****
  • Thank You
  • -Receive: 4
  • Posts: 300
    • View Profile
Injector issues
« on: May 20, 2016, 06:09:06 AM »
Hi all, i suspect my injector being clogged, just in case, im getting 0.6v while trying to start is that enough?
318i saloon base,lowered 40mm, alpinweiss2,535i rubbers,powerflex all round,6 for 6 goodridge, M3 caster rubbers, elec fan, carbon stud braces, CatCams, 8,4Kg flywheel ,ITB\'s, 3:73LSD

Froos

  • Sr. Member
  • ****
  • Thank You
  • -Receive: 4
  • Posts: 300
    • View Profile
Re: Injector issues
« Reply #1 on: May 20, 2016, 10:25:31 AM »
Resistance is 8.7 on all 4...but they sat on my workbench for like 8 years but would really like to know the operating voltage
318i saloon base,lowered 40mm, alpinweiss2,535i rubbers,powerflex all round,6 for 6 goodridge, M3 caster rubbers, elec fan, carbon stud braces, CatCams, 8,4Kg flywheel ,ITB\'s, 3:73LSD

Froos

  • Sr. Member
  • ****
  • Thank You
  • -Receive: 4
  • Posts: 300
    • View Profile
Re: Injector issues
« Reply #2 on: May 21, 2016, 12:34:40 AM »
Those 0.6v is between the leads of the injector, should i measure between the + of the injector and the ground?
318i saloon base,lowered 40mm, alpinweiss2,535i rubbers,powerflex all round,6 for 6 goodridge, M3 caster rubbers, elec fan, carbon stud braces, CatCams, 8,4Kg flywheel ,ITB\'s, 3:73LSD

Froos

  • Sr. Member
  • ****
  • Thank You
  • -Receive: 4
  • Posts: 300
    • View Profile
Re: Injector issues
« Reply #3 on: May 22, 2016, 07:33:17 AM »
Made a setup to clean the injectors, they wont open with 1.5 or 3v, with a 9v battery they do open. So cleaned them hardy any crap came out and they operate fine. I guess you cant measure operating voltage without an oscilloscope what do you people use to check voltage
318i saloon base,lowered 40mm, alpinweiss2,535i rubbers,powerflex all round,6 for 6 goodridge, M3 caster rubbers, elec fan, carbon stud braces, CatCams, 8,4Kg flywheel ,ITB\'s, 3:73LSD

Froos

  • Sr. Member
  • ****
  • Thank You
  • -Receive: 4
  • Posts: 300
    • View Profile
Re: Injector issues
« Reply #4 on: May 23, 2016, 03:08:32 PM »
It was the fuel pump only putting out 25 psi
318i saloon base,lowered 40mm, alpinweiss2,535i rubbers,powerflex all round,6 for 6 goodridge, M3 caster rubbers, elec fan, carbon stud braces, CatCams, 8,4Kg flywheel ,ITB\'s, 3:73LSD

colin86325

  • Hero Member
  • *****
  • Thank You
  • -Receive: 15
  • Posts: 764
    • View Profile
Re: Injector issues
« Reply #5 on: May 24, 2016, 10:27:15 AM »
Glad you got it figured out.  I'd change the fuel filter as well.

As far as injector operating voltage, I would think that they operate closer to 12v, but I could be wrong.

Froos

  • Sr. Member
  • ****
  • Thank You
  • -Receive: 4
  • Posts: 300
    • View Profile
Re: Injector issues
« Reply #6 on: May 24, 2016, 11:16:51 AM »
Thanks for that, i put in a brand new filter when started finishing 2 weeks ago, engine did fire up with the itb's and return line blocked but just idle. Now waiting for a new pump and inline fuel pressure regulator
318i saloon base,lowered 40mm, alpinweiss2,535i rubbers,powerflex all round,6 for 6 goodridge, M3 caster rubbers, elec fan, carbon stud braces, CatCams, 8,4Kg flywheel ,ITB\'s, 3:73LSD