Originally Posted by Infinite
Theres a guy you migt want to talk to that has successfully installed an aem fic-8 on a clk430 turbo he built.
I've been meaning to contact him because im curious as to the following. which tps wire you tap,
and how the aem controls the coilpacks for dual plug per cylinder, since iirc the ignition sequence is staggered at high rpms which means each coil is getting two seperate signals (or maybe its built into the coil, im not sure)
The FIC modifies the cam and crank signals and that is how it changes timing. Unlike the injectors where you intercept each one, the ignition wires are left untouched. As for TPS, you just tap into TPS signal 1 as it has the larger of the two voltage ranges between the two signals and has a higher resolution than TPS signal 2.