Fuel Injector Bench Cleaning and Testing

[CTScott]

I was getting ready to ship a set of fuel injectors, purchased from a wrecked Yaris off eBay, and wanted to test and clean them before shipping. I built a simple test fixture to allow me to open the injector and flow injector cleanser through it, while watching the spray pattern.

The test fixture consists of:

A power supply (capable of supplying 12-14 VDC @ .5A or greater)

A handheld switch, inline with the power feed (to fire the injector)

A Yaris engine harness injector connector

A syringe, with the plunger removed, where the body will fit snugly over the O-ring at the top of the injector.

A clear container with a hole drilled in the top, which the injector bottom fits snugly in, and a second pin hole to allow the pressure from the cleanser to be released

A Can of injector cleanser

Safety equipment - Safety glasses and a fire extinguisher

At the bottom is a picture of the setup and below is a link to a video of it in action:

http://www.youtube.com/watch?v=q_mkTuLwIdI

Injector Clean and Test.jpg

[CrankyOldMan]

Wizard. I just picked up a set of used 1ZZ (255cc) injectors and was going to send them off to be flow tested. Perhaps I can score a connector and do the same.

[CTScott]

Originally Posted by CrankyOldMan

Wizard. I just picked up a set of used 1ZZ (255cc) injectors and was going to send them off to be flow tested. Perhaps I can score a connector and do the same.

I have many of the connectors on hand, if you'd like to snarf one.