Originally Posted by tabetha

There are billions of cars worldwide apart from mine using resistors.
If it is mapped correctly with resistors they work 100% fine and have NO EFFECT, as any is accounted for in mapping.
The resistors go in the ecu feed(negative/switch) to each injector, it can be mapped perfectly with these, as 0.97% CO 137PPM on a 200K mile old engine(mine) shows, that could still crack 40 mpg and idle perfectly on greys, T34 modded head etc.
tabetha