Hi!
I had to change my FI Wire-Harness ('73 914-4 2.0L), because the old one wasn't good anymore. Barely moving wires broke them. So I installed a brand new harness. However, my engine is not running smoothly at all. It sounds as if it would be running on three cylinders only. You can hear it on this video I posted on YouTube:
http://www.youtube.com/watch?v=Uu6K7P4bpQk
How can I test weather all injectors are receiving impulses from the ECU? Can it be done with a multimeter? I also have an extra set of injectors taken out from a more recent car ('74 I believe. They are green). Should I just connect each injector wire to one of these extra injectors in loose air one by one and see what happens? Even if there is no gas line connected to the injector?
Also, is there an easy procedure (without special tools) to ensure that all injectors are working properly? And if I find an injector that is not working properly can I swap it with one of the extra ones I have. All injectors in my car, and the extra ones are green (sometimes they look black, maybe because of the age).
Cheers!
JF
P.S. I also changed the injector o-rings recently...