is there a how-to written on checking injector grounds?
i still havent fixed my 4200rpm limit problem...so im figuring ill start with the secondary injector grounds, and go from there. any help is appreciated!!!

 

....anyone? ::echo::

 

Someone will come along. In the meantime, the injectors get their ground from the ECU. That on and off ground signal is what pulses the injectors. The ECU grounds are under the dynamic chamber on a circular connector. You can go directly to the ECU and go to the small plug(assuming you have a 86-88). There on that connector are two grounds on pins 3A and 3G. You can add a splice to those grounds and terminate the other end near the ECU on a piece of clean, bare metal structure. Look for less than one ohm when through. Or you can take the dynamic chamber off and check those grounds. They should be on a circular connector held down by a bracket bolt.
Also try to read this thread all the way through: https://www.rx7club.com/forum/showth...threadid=17974 Its the RXSTER comments that I refer to.
Also this which is refered to in RXSTER'S : http://home.earthlink.net/~burntoast/3700.html