M42club.com - Home of the BMW E30/E36 318i/iS

DISCUSSION => Engine + Driveline => Topic started by: Froos on May 20, 2016, 06:09:06 AM

Title: Injector issues
Post by: Froos 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?

Title: Re: Injector issues
Post by: Froos 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

Title: Re: Injector issues
Post by: Froos 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?

Title: Re: Injector issues
Post by: Froos 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

Title: Re: Injector issues
Post by: Froos on May 23, 2016, 03:08:32 PM

It was the fuel pump only putting out 25 psi

Title: Re: Injector issues
Post by: colin86325 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.

Title: Re: Injector issues
Post by: Froos 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