Just asking with the people who experience with them. I'm helping a friend of mine that have a rteck 1.8 version on his 88 turbo 2. the thing is it saids to run 720cc injectors on all 4. he have injector dynamic id725 wich 5cc won't hurt nothing. but it won't idle and act like the tps is out of whack. I changed the tps and is adjusted, afm, wts, pressure sensor all the wiring is good. I don't knwo what else could be. Now i think is the injector but does it have to be high impendace or low? Because that's the only think I'm wondering with it. I appreciate any info.

Eddie

 

The impedance depends on what year and whether the car is wired originally. The S5 are all high while some S4's are high as well but the early ones are low. 86 through mid 87 are low and the rest is high. The early S4s that are low have the injector resistor box. Bypassing the box allows one to run high impedance. If the injector has a B/W wire powering it then it is high and if the injector wire is Brown then it is low.

 

Ok I'll double check. But anyone had any issues with the injector dynamics with the rtek?

 

There is also a forum here just for rtek.


https://www.rx7club.com/rtek-forum-168/

 

Thanks