Megasquirt running a MS without a TPS?
09-13-10, 09:28 PM
#1
running a MS without a TPS?
I have been told in the past that you can run the megasquirt without a TPS. I am running a custom TB set-up and mating a TPS to it would really create a problem.
If i just run a MAP sensor, how would i create a difference in full throttle, cruise, and light throttle MAPs? Is there a way i can measure load or another way to run without a TPS and still get a good tune.
If i just run a MAP sensor, how would i create a difference in full throttle, cruise, and light throttle MAPs? Is there a way i can measure load or another way to run without a TPS and still get a good tune.
09-14-10, 09:15 AM
#3
The MAP signal will change based on your throttle position (as long as you're pulling from after the throttle plates anyway), so as long as you are using speed-density (NOT alpha-N) mode for fueling and MAP-based accel enrichments, you should be able to get it pretty well. You won't be able to do over-run fuel cut or closed-loop idle control though (unless you put a simple "throttle-closed" switch on the TB or pedal)
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