K2543 function check

1 month age I’ve mounted a K2543 kit in my 40 yr old Saab 99 with D-Jetronic injection system.
The car ran ok after installing.
It has run 10 yrs without problems but now it has broken down; no more ignition and problems with my ECU?;
the electrical fuel pump also quit functioning.
The distributor is a Bosch, type 0231 163 007.
Unfortunately spare-parts are very rare for my car so I’ve difficulties getting it running again.
The injection system has little relation to the ignition system; it only receives a signal for the injection timing;
but I’m wondering what the kit did to the system.

Can it be that some / all my ignition parts (ign.coil, pre-resistance, cables, distributor, rotor, sparkplugs) cannot handle the kit ?
Can I send the kit to Velleman for a (warranty) check ?

Thank you in advance for the info.

We can check the kit for correct operation, but that is something you can easily do yourself.
Please check the link below (allow 1h for server refresh).
http://www.velleman.eu/images/tmp/K2543.jpg

Thank you for the info.
Can you info me also on the other questions;

Can the Unit, f.i. if a part in the kit brakes down,
cause malfunctioning or even destroying other parts (of the ignition system)?

Sorry,

We have no knowledge of this car in particular, no schematic diagrams of the car’s electrical system, we have not been able to check the installation of the kit in the car, so we are afraid it impossible to answer this question.