Many moons ago, it was at the ecu, then it was at the injectors bla bla none of those are accurate signals.
Has any progress been made?
Really? Injectors aren't a good signal? What do they look like on the scope?
Surely the crank would also work
What is the method used by the standalone systems like vipec, and autronic?
pin 9, orange connector. been working great for me since last June. solid as a rock.
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Coil signal has always worked for me
MSD has several different Tach Adapters to solve different problems. Here is the link:
Last edited by Chickenman35; 01-26-2013 at 12:43 PM.
"...I recommend books. People who don't know what they're talking about are less likely to write a book about the subject...."
Cam sensor has a 1 pulse per cylinder output if it's a DBW car- you still need an MSD box if whatever you are running is looking for a high voltage output.
It's uneven, but you'll never see that in the data as almost all devices have some filtering or capacitance.
Added to the FAQ under electrical
if your going to stock cluster, use a tach adapter 8920 MSD
if your going to an aftermarket liek i did..no need. that's why i pulled it off of the orange connector, it is the most solid signal i have gotten over the years.