Matching ECU with MAP

OK, thanks for that explanation. I am unfamiliar with the terminology "signals from trigger contacts", what is generating those signals/triggers? Thanks

I will go read the write up you did on the system before asking any more questions, thanks for your help.

Hi Julian,

trigger contacts are described here

I need to find the yellow Bosch injectors for my 116.980. I have seen some posts that refer to chinese replacements. Are those OK? If not, what do you recommend? None of mine are any good. Thanks, Julian

Hi Julian,

unfortunately I cannot recommend them as replacement. Try any lto find any yellow injector ike 0 280 150 009 or get yours professionally cleaned.