Anotha MS3z that will doez the VVTz
#22
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To answer my own question: I reduced the idle valve frequency from the MS3 to 50Hz and hooked it up to my own expansion board that ups the frequency to 490Hz: It idles better now and doesn't hum as loud.
#25
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It feels smoother than the MS2, it doesn't having a random misfiring issue that the MS2 has (at least I haven't felt it for the past week), I like that it doesn't stumble when I save changes, the number of available inputs/outputs is AWESOME. It required a LOT more fuel than the MS2, around 50% in most areas (I idle at 40 in the MS2, 61 in the MS3), and I still haven't nailed down the cranking fueling - it doesn't start as nice as the MS2, but that's obviously in the tuning, and when I want to leave I'm usually in a hurry.
#26
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The misfire thing is funny. My MS3 missed where the MS2 didn't. Going seq. spark solved that however.
I noticed a similar thing with my fuel maps so I altered the req_fuel value instead of rescaling/retuning the fuel map.
I noticed a similar thing with my fuel maps so I altered the req_fuel value instead of rescaling/retuning the fuel map.
#29
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yes in fact!
after I started using VVT, the Q3 (upper right of schematic below) transistor started to get reeeeeally hot and screwing with all my PWM outputs on the expander board.
I know you're not using that board but I'm curious if there's something about the VVT solenoid that causes problems with that circuit.
Temporary solution was a diode between VVT and +12.
Potential more universal solution is changing the 32V zener to a 22V zener.
I'm just a user so I only have a marginal grasp on cause and effect here. As I understand it, there is something about the solenoid that's forcing that transistor to dissipate a lot of power (so much that it heats up and discolors) but only with the VVT-compatible firmware.
Big ol shot of Q3:
after I started using VVT, the Q3 (upper right of schematic below) transistor started to get reeeeeally hot and screwing with all my PWM outputs on the expander board.
I know you're not using that board but I'm curious if there's something about the VVT solenoid that causes problems with that circuit.
Temporary solution was a diode between VVT and +12.
Potential more universal solution is changing the 32V zener to a 22V zener.
I'm just a user so I only have a marginal grasp on cause and effect here. As I understand it, there is something about the solenoid that's forcing that transistor to dissipate a lot of power (so much that it heats up and discolors) but only with the VVT-compatible firmware.
Big ol shot of Q3:
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