KE-Jetronic manual

if you only may get more knowledge how the KE system is working you may google a little and will find a lot of imformation

 

I have a K-Jetronic manual 1 987 722 159

 

There is a download available at Ferrari 400 - K jetronic downloads. The title of this pdf download (which mentions the number 1 987 722 101 on the last page in the right bottom corner) is "Ke jetronic book".

 

or do you mean the blue Ferrari KE-Jetronic book?
regards
Andre

 

I have a hardcopy of the Bosch 1 987 722 101 pamphlet (and someday might scan it for ferraridatabase), but it won't give you any better information than Chapter D, plus the Chapter D US supplement, for addressing a US TR runability program (or the "blue" KE-Jetronic without Lamda F pamphlet for a mid~late euro F113B TR). In fact, it's more general in nature, and brings in components/features/confusion that weren't incorporated into F's particular KE-Jet implementation. It does have the best figure (technical content-wise and high quality printing) that I can recall seeing for explaining how the EHA works inside, but just measuring what the EHA is, or isn't doing, system-wise to the lower chamber pressure is more important for addressing a runability problem IMO.

You should definitely do this as "bad cold-running operation, but quasi-decent warm-running" can be the result of "a dead protection relay, and then the system's mixtures (wrongly) gets manually tweaked up when warm (so warm-running is quasi-corrected, but, with no +12V to run the injection system, none of the cold-running enrichment works as that's done electrically on KE-Jet)".

Good Hunting!

 

You can download a copy from All Ferraris - it's in the Workshop Manual Section ('Workshop Manual Testarossa Supplement Catalytic Converters").