[Diy_efi] About MAP sensing and it's jitter

[Tomas Sokorai Sch.]

Hi!
Anybody knows how much (KPa, inHg, etc.) should the MAP signal jump at idle 
with a totally stock 1975 Ford 302?. I know that engines with radical cams 
get heavy MAP jumping at idle, but I'm getting this after I installed my 
ignition project prototype on "datalog-only" mode (info about my project: 
http://www.sokorai.cl/camioneta/IGN_ECU_en.html) .
I know that the signal is clean, as all the other sensors read OK (RPM from a 
hall pickup, battery voltage, and CTS), and when reading baro (engine not 
running) , it's very steady).
I'm starting to worry engine valvetrain problems instead of my 
circuit's....  :(

TIA

-- 
Tomas J. Sokorai Sch.
Socio director, Gerente Proyectos Especiales
Xperts Ltda. F: 63 244591, Valdivia, Chile
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