I am not having any luck with this. If I touch leads from the injector straight to battery (on the bench) I hear it click, but not when I hook it up to this tester. It got great reviews and seems to work for almost everyone. I can't tell if it is defective or the Bosch injectors require more power than this thing is set for. I am trying to use it to pulse clean my injectors on the bench.

I can't get it to read anything on the meter, but it may be cycling too fast.

 

For some reason I remember watching a YouTube video and the person used the option 3 for pulse with that specific tester.
Then again, my memory is bad and can't remember what I had for lunch yesterday.

 

I didn't use that device. 2 wires. A 9 volt battery.
1 can of carb cleaner.
Carb cleaner red straw tube duct taped onto fuel rail fuel input.

Touch 2 wires from 9v battery to fuel injector while spraying carb cleaner into fuel rails. Insure that you have a great spray pattern when connected and that you have NOTHING coming out of each injector when unconnected.

Also, you can use a stopwatch and time the spray filling into a shot glass to verify that all 8 injectors fill to the same level in the same time (e.g. 5 seconds).


No need for anything else or any other test. Also, this cleans as you test.

 

Well, the company I bought it from gave me 1/2 the cost in refund. I think it is defective. I did it like last time, with Sea Foam Green, a battery, and air pressure. All injectors have a nice spray and pattern, none dribble. The ohms are spot on at 15.3. I may make my own at some point using a 555 timer, etc.