DIYPNP crank and cam sensor 99/00
The instructions on the DIY site don't say which two connections are the crank and the cam sensor.
http://www.diyautotune.com/diypnp/ap...0-18bp-mt.html Any idea where the cam and crank are hooked up to the DIYPNP? |
Opto in - 3j
vr2 in + 3h |
Thanks, I finally backed in to it. Will have VVT control soon!!!
|
What should the out put of the crank sensor look like in comparison to the cam sensor? (on a scope)
|
|
http://lh4.ggpht.com/_-G4gMz5adZc/TJ...152/myvvt1.jpg |
You asked what they look like on a scope, not what they look like in TunerStudio's composite logger. When viewed on a scope, the cam and crank sensors of any 1999 through 2005 Miata look like the upper pair of traces in the image I posted.
I've never actually used TS's tooth logger, so I'm afraid I can't tell you how to interpret it. |
Sorry, we have been doing both and I didn't have a way to post the traces from a Textronix 466 scope. Does the image I posted look correct for a composite log? Thanks for your help.
|
Originally Posted by engled
(Post 634597)
Does the image I posted look correct for a composite log?
I tried using the tooth logger once, back when I was having a misfire that I suspected (and later proved, by elimination) was caused by dropouts in my crank sensor reading. But since I have an MS1, the tooth logger proved to be pretty much useless in troubleshooting that problem owing to the MS1's inability hold more than 93 samples at a time. So it's all Greek to me. |
those red lines shows it's reading signals it wasn't expecting...
|
I'm not sure what any of the lines mean. Neither the green line nor the blue line actually depict the raw crank sensor- they're both showing evenly-spaced events, whereas neither crank nor the cam sensor are evenly spaced. The four crank teeth are arranged in two groups such that the gaps are roughly 70° - 110° - 70° - 110°.
Since he's looking at the "composite logger" rather than the "tooth logger", I simply haven't a clue what's actually being shown. It bears no relation to an NB crank or cam signal that I can see. |
green is cam, blue is crank, red is error. you dont want red lines :)
|
Originally Posted by Braineack
(Post 634900)
green is cam, blue is crank
|
One other thing:
Originally Posted by engled
(Post 634597)
I didn't have a way to post the traces from a Textronix 466 scope.
|
yeah, the red is showing that it logged an event it wasn't expecting.
|
I don't even mean the red. You could take that trace away and the green & blue traces would still look absolutely nothing at all like an NB's crank and cam sensor signals.
Again, I'm making assumptions here, as I don't have any first-hand knowledge of how the composite logger works, but it's certainly not display anything that, to my eyes, looks like a Miata crank/cam signal. |
Something is wrong. This what NB triggers look like on a composite log:
(note the similarity to Joe's scope capture) http://img535.imageshack.us/img535/1...acomposite.jpg |
Thanks Ben, that is what I needed to see. Thanks to everyone else that offered advise as well.
|
How are you generating the log that you posted? It's what I would expect from a B6T 4/1 CAS. Looks nothing like a Miata wave form.
|
that's weird Ben, my '00 looks like this.
Notice my cam signal is upside down. Also each time there's a cam trigger, I get that same trigger on the crank signal. Those are not there in your traces it seems. Could you zoom in a bit further on your signal? According to Joe's capture they shouldn't be there. The car runs fine although it does take a long time to sync (5-6 full cycles). Any ideas what could be causing this? I'm using Joe's input circuits on a V3 board. http://dl.dropbox.com/u/3961412/composite.png |
All times are GMT -4. The time now is 02:03 AM. |
© 2024 MH Sub I, LLC dba Internet Brands