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J35a4 Triggers
Posted: Thu Sep 21, 2023 9:05 pm
by OldKamikaze
Hello,
Working on J35A4.
Would like to have/contribute/test to trigger patterns to J35/J30/J32 (they are looking very similar)
Patterns:
Crank: 12+12+0 (No missing)
Cam: 6+4+2 (2missing)
Funny thing J35a4 have 2 Cam sensors (180 degrees apart). Any advices on this one?
Is any dev on this one or code? What engine resembles this one? I'll take is a template.
Thnx to all in advance
Re: J35a4 Triggers
Posted: Sat Sep 23, 2023 6:35 pm
by PSIG
OldKamikaze wrote: ↑Thu Sep 21, 2023 9:05 pmZCrank: 12+12+0 (No missing)
Cam: 6+4+2 (2missing)
I don't have that set of patterns on file. Your description does not appear to follow naming convention for + or - teeth, and does not translate to a valid pattern. Please provide a drawing, or image, or oscilloscope pattern, etc.
Re: J35a4 Triggers
Posted: Sat Sep 23, 2023 11:02 pm
by OldKamikaze
PSIG wrote: ↑Sat Sep 23, 2023 6:35 pm
OldKamikaze wrote: ↑Thu Sep 21, 2023 9:05 pmZCrank: 12+12+0 (No missing)
Cam: 6+4+2 (2missing)
I don't have that set of patterns on file. Your description does not appear to follow naming convention for + or - teeth, and does not translate to a valid pattern. Please provide a drawing, or image, or oscilloscope pattern, etc.
Will do, have oscilloscope
Re: J35a4 Triggers
Posted: Sun Sep 24, 2023 6:49 am
by LPG2CV
Do you mean something simular to this, when you say 12+12+0?
Re: J35a4 Triggers
Posted: Mon Sep 25, 2023 1:13 am
by OldKamikaze
LPG2CV wrote: ↑Sun Sep 24, 2023 6:49 am
Do you mean something simular to this, when you say 12+12+0?
I guess I do not understand labeling on trigger patterns.
It is just a disc with evenly spaced 12 tooth .
Re: J35a4 Triggers
Posted: Mon Sep 25, 2023 1:15 am
by OldKamikaze
Unfortunately my ECU declined to steam pulses, but this is what oscilloscope gave me.
See attached office file, making the cam gear
Re: J35a4 Triggers
Posted: Mon Sep 25, 2023 1:40 am
by OldKamikaze
There is no point using second cam sensor, as is at the cam picture i edited in this position we get cyl1 TDC. So sensor 1 is the best and easy to detect as is first to pick after missing tooth is 1 cyl TDC
Re: J35a4 Triggers
Posted: Mon Sep 25, 2023 5:51 pm
by OldKamikaze
Some filtering in human/binary form.
Every fifth tooth is a cylinder TDC. After missing teeth on cam, first tooth is 1 cyl TDC
Re: J35a4 Triggers
Posted: Mon Sep 25, 2023 6:38 pm
by OldKamikaze
any hints what resembles best to this? It should work with j35/j32/j30?
Thnx in advance
Re: J35a4 Triggers
Posted: Mon Sep 25, 2023 8:42 pm
by OldKamikaze
Important correction. I believe the line on a cam indicates the TDC, so it should look like this. TDC on a fall, not rise