As a former bosch fuel injection technican (a lifetime ago in the mid 80's k-jetronic was my favourite)
I know how a little knowlage can totally screw up your injection system by mis diagnosis and improper adjustment.
https://oldtimer.tips/en/d-jetronic/59-triggercontacts
Read about the injectior trigger contacts operation in the link above
I recomend the Dr-Djet bloke hes got great infomation