- Joined
- Jan 24, 2009
- Location
- KC, MO
I think it goes low, to fire the bosch 124 module.
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Referring to the start of the thread and the varying AMM signal, is there any way to check that it really is intake pulses you are seeing? And not interference from ignition leads, etc?
It seems impressive that the intake pulse can still be measured after passing out past the throttle, through the intercooler and most importantly out through your turbo (especially on the WOT run where the turbo would be spinning at full speed).
If you look at the WOT data in my second post, you can see the amm signal is a gradual up and down, not a square wave like the ignition pulses. That pretty much rules out ignition nose as a potential source.
But maybe I'm thinking about this all wrong. BTW, I'm working to remake my amm cables using all shielded wiring with the shields grounded on both ends. That should help rule out electronic noise and is a good practice anyway.