Megasquirt rx8 trigger wheel question
#1
rx8 trigger wheel question
ok i got the rx8 trigger wheel to work on my car but I'm having a few issues…the set up is s5 13b using fc coils and rx8 trigger wheel and on the megasquirt is set up for trigger wheel and i have 3 spark out puts. the problem is that I'm not getting the trailing coils to work but the leading is working fine and the car drives smooth and idles perfect. on tunnerstudio i have the rotary settings set to fc should i change it to fd or rx8 since I'm using the rx8 wheel. thanks
#2
MegaSquirt Mod
The wheel setting is independent of the spark outputs. Setting RX8 wheel should work with any engine and ignition configuration.
The problem you are having is most likely related to wiring or similar.
Ken
The problem you are having is most likely related to wiring or similar.
Ken
#3
ok i have it wired as follows d14 to ign spark output A pin 36 on the leading coil d16 to IAC2B output B pin 31 to red wire on the trailing coil IGT and d15 to IAC2A spark out put C pin 29 white wire on the trailing coil select
settings at the megasquirt
is 36-2-2-2
65 trigger offset
going low
rising edge
fc mode
settings at the megasquirt
is 36-2-2-2
65 trigger offset
going low
rising edge
fc mode
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#11
MegaSquirt Mod
The left and right LEDs should very briefly blink during crank. The middle LED should very visibly blink during crank. At idle the left and right LEDs should just be dimly lit and the middle should blink. The middle LED should be wired to coil select on the trailing ignitor, the right LED should go to trailing IGt.
Ken
Ken
#18
MegaSquirt Mod
I've not had a chance to look at your msq or try it on the bench. I'll try to get to that in the next day or two and let you know what I find with that firmware.
It might just be that trailing is broken in that firmware.
Ken
It might just be that trailing is broken in that firmware.
Ken
#20
MegaSquirt Mod
Problems in the msq:
Trigger Angle/Offset should be 0.
You're using far too much cranking advance. That should be closer to 0 degrees.
Your maximum dwell duration is probably getting close to the current limit. Try something closer to 2.6-3 ms
Did you turn on the noise filter on purpose? It should not be used unless you actually need it.
Your staged injection table is going to stage at anything above 75 kPa regardless of RPM. Is that what you intended?
Your idle advance settings are probably going to give you idle advance when you don't want it.
My recommendation is to get everything working correctly, then start turning on the more advanced features like idle advance.
None of the problems I found above should explain why you don't have trailing ignition, and I vaguely remember someone saying that the 3.1.0 firmware had a bug that kept trailing from working, so I'd try the latest stable firmware which is ms2/extra 3.2.1.
Ken
Trigger Angle/Offset should be 0.
You're using far too much cranking advance. That should be closer to 0 degrees.
Your maximum dwell duration is probably getting close to the current limit. Try something closer to 2.6-3 ms
Did you turn on the noise filter on purpose? It should not be used unless you actually need it.
Your staged injection table is going to stage at anything above 75 kPa regardless of RPM. Is that what you intended?
Your idle advance settings are probably going to give you idle advance when you don't want it.
My recommendation is to get everything working correctly, then start turning on the more advanced features like idle advance.
None of the problems I found above should explain why you don't have trailing ignition, and I vaguely remember someone saying that the 3.1.0 firmware had a bug that kept trailing from working, so I'd try the latest stable firmware which is ms2/extra 3.2.1.
Ken
#21
Problems in the msq:
Trigger Angle/Offset should be 0.
You're using far too much cranking advance. That should be closer to 0 degrees.
Your maximum dwell duration is probably getting close to the current limit. Try something closer to 2.6-3 ms
Did you turn on the noise filter on purpose? It should not be used unless you actually need it.
Your staged injection table is going to stage at anything above 75 kPa regardless of RPM. Is that what you intended?
Your idle advance settings are probably going to give you idle advance when you don't want it.
My recommendation is to get everything working correctly, then start turning on the more advanced features like idle advance.
None of the problems I found above should explain why you don't have trailing ignition, and I vaguely remember someone saying that the 3.1.0 firmware had a bug that kept trailing from working, so I'd try the latest stable firmware which is ms2/extra 3.2.1.
Ken
Trigger Angle/Offset should be 0.
You're using far too much cranking advance. That should be closer to 0 degrees.
Your maximum dwell duration is probably getting close to the current limit. Try something closer to 2.6-3 ms
Did you turn on the noise filter on purpose? It should not be used unless you actually need it.
Your staged injection table is going to stage at anything above 75 kPa regardless of RPM. Is that what you intended?
Your idle advance settings are probably going to give you idle advance when you don't want it.
My recommendation is to get everything working correctly, then start turning on the more advanced features like idle advance.
None of the problems I found above should explain why you don't have trailing ignition, and I vaguely remember someone saying that the 3.1.0 firmware had a bug that kept trailing from working, so I'd try the latest stable firmware which is ms2/extra 3.2.1.
Ken
#24
MegaSquirt Mod
Everything you had set in your msq as far as spark outputs looked fine.
I'll test on the bench and see if it's working later. If it is working, it's likely that you made an error modding your board or wiring to the trailing ignitor.
Ken
I'll test on the bench and see if it's working later. If it is working, it's likely that you made an error modding your board or wiring to the trailing ignitor.
Ken