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N0DIH
January 6th, 2011, 08:12 AM
Anyone have the pictures of the 58x and 24x waveforms?
GMPX
January 6th, 2011, 08:48 AM
I do have a 24x picture back at the office in Australia, I'll scan and post it when I get back. 58x is simple, 58 pulses then one long (or missing one) to make up the 60. It's also known as 60-2, being 60 pulses minus 2 pulses (the long pulse). At least that's what I remember it as from years ago making a crank pattern simulator.
N0DIH
January 6th, 2011, 10:45 AM
I know I have seen it, but I can't find it for anything. Did the 98 LS1's use 24x too? I have a 98 P12 L21 454 manual, I know it used the LS1 PCM, but that is about it. It was a strange animal. CNP and ETC for a 454... And an Allison... (not A1000).
joecar
January 6th, 2011, 11:00 AM
You mean this...
N0DIH
January 6th, 2011, 11:00 AM
What? :)

You mean this...
joecar
January 6th, 2011, 11:08 AM
Oh, I clicked Submit Reply instead of Manage Attachments... :doh2: see my post again.
N0DIH
January 6th, 2011, 11:47 AM
I see it now, thanks! That is what I was looking for. So the 58x is 60-2, is there a cam sensor also to look at?
joecar
January 6th, 2011, 12:14 PM
I don't have any 58x/4x waveforms.
N0DIH
January 6th, 2011, 12:25 PM
I need some newer vehicles!


I don't have any 58x/4x waveforms.
Yellow05C6
September 22nd, 2015, 07:19 AM
18854Here is an E38 58x / 4x signal.
Blake0
October 12th, 2018, 11:26 AM
18854Here is an E38 58x / 4x signal.

Yellow05C6,
Any idea where TDC #1 is on this graph or where the missing teeth are? It looks like the missing teeth are 84 and 78 degrees BTDC #1 when I compare this to the 24x reluctor wheel.
Thanks,
Blake