Interesting news about noise on TPS MS V3 board
#1
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Interesting news about noise on TPS MS V3 board
Apparently the two polyfuses bring a lot of noise into the system:
Read here - http://www.msextra.com/forums/viewto...2233&start=200
As an electronics nerd I have no clue - what would be the correct substitute fuses to get?
I will wait what happens in the thread off course before I touch anything.
Thought you might find this interesting (Jason did quite a bit of work in the thread)
Greets
Read here - http://www.msextra.com/forums/viewto...2233&start=200
As an electronics nerd I have no clue - what would be the correct substitute fuses to get?
I will wait what happens in the thread off course before I touch anything.
Thought you might find this interesting (Jason did quite a bit of work in the thread)
Greets
#2
Does the DIYPNP have something similar and/or what noise could equally be contributing on that board?
I see lots of noise that I think is coming from the LC1 EGO sensor (that is grabbing it's 12V heater power from the ECU and the rhythmic heating cycle seems to be seen visually in the battery and in noise of the sensors TPS etc) - simple plan is to move to another 12V feed that is switched by relay from the ECU instead, but anything to cut down the noise from a component (eg regulator) is worth a try too.
I see lots of noise that I think is coming from the LC1 EGO sensor (that is grabbing it's 12V heater power from the ECU and the rhythmic heating cycle seems to be seen visually in the battery and in noise of the sensors TPS etc) - simple plan is to move to another 12V feed that is switched by relay from the ECU instead, but anything to cut down the noise from a component (eg regulator) is worth a try too.
#3
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I'm getting about -/+20 tpsDOT noise with my Enhanced MS2. With the DIYPNP, it was more like +/-70. Removing all the high-noise components from the V3 board (injectors drivers, idle valve driver, boost control, etc) has done wonders. TPSdot lag filter at 85%, custom 3.1.2 firmware with no tpsDOT enhancements.
#4
What is an Enhanced MS2? - does this contain noise filters or other circuitry to reduce voltage noise or sensor noise?
Does removing unused components apply to DIYPNP too? I built the DIYPNP with everything added, with the view that maybe sometime in the future they'd be needed. Mmm, perhaps I should remove them?
I'm running with 100% lag filter and with the new TPS Oversampling and tpsDOT Moving Anchor I've got AE running at 20% with zero false triggers. I could probably run at 10% but have chosen to avoid that as my right foot is generally not that steady.
Obviously I'd prefer it to be generally quieter in the signal in the first place, but I'd say we've engineered a fairly good outcome in software.
Obviously I'd prefer it to be generally quieter in the signal in the first place, but I'd say we've engineered a fairly good outcome in software.
#7
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I'm running with 100% lag filter and with the new TPS Oversampling and tpsDOT Moving Anchor I've got AE running at 20% with zero false triggers. I could probably run at 10% but have chosen to avoid that as my right foot is generally not that steady.
Obviously I'd prefer it to be generally quieter in the signal in the first place, but I'd say we've engineered a fairly good outcome in software.
Obviously I'd prefer it to be generally quieter in the signal in the first place, but I'd say we've engineered a fairly good outcome in software.
#8
Check out my post, the one with the multiple images:
http://www.msextra.com/forums/viewto...315541#p315541
http://www.msextra.com/forums/viewto...315541#p315541
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