Re: Need an EFI tech!
Some newer multimeters have a frequency function and very high input impedance, so the frequency can be read with them too. Yes, I would look at the sig rtn wire or the regulated 5v vref that they use. I use an older Fluke 8060A for that function. I have some nice color diagrams you could use at:
www.veryuseful.com/mustang/tech/engine
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Tom (Torque) Moss
88Gt 5spd Vert, FLowmaster Catbacks, stock cam advanced 4° @ 108.5° ICL, NMRA prepped GT40P heads 1.85/1.55 valves and 1.7 rockers, MAC P headers Jet-Hot coated, 97 Exlporer intake (ported lower), TB and injectors. 277RWHP/330RWTQ (SAE).
http://www.fastlanecars.com/
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