Crank pull-up
#2
Boost Pope
iTrader: (8)
Join Date: Sep 2005
Location: Chicago. (The less-murder part.)
Posts: 33,455
Total Cats: 6,874
Yes.
Both the crank and cam sensors on the NB are of the open-collector output type. This means that they provide a closure to ground when active. As such, you must provide an external pullup voltage via a resistor (1k is typical) to their output pin in order to produce a useful signal.
Both the crank and cam sensors on the NB are of the open-collector output type. This means that they provide a closure to ground when active. As such, you must provide an external pullup voltage via a resistor (1k is typical) to their output pin in order to produce a useful signal.
#3
Yes.
Both the crank and cam sensors on the NB are of the open-collector output type. This means that they provide a closure to ground when active. As such, you must provide an external pullup voltage via a resistor (1k is typical) to their output pin in order to produce a useful signal.
Both the crank and cam sensors on the NB are of the open-collector output type. This means that they provide a closure to ground when active. As such, you must provide an external pullup voltage via a resistor (1k is typical) to their output pin in order to produce a useful signal.
The NB crank sensor doesn’t have its own pull-up from what you said. I wonder then how the PO ran their car.
#5
From the manual I’m reading that R57 needs a 1k essentially.
So, just to be sure the Miata’s hall sensor on the cam doesn’t have an internal pull-up, and therefore I need R57.
Adjustment of R52 and R56 doesn’t affect that I need a pull-up.
Im just really confused how this board ran an NB lol.
http://www.msextra.com/doc/general/t...7.html#vrlogic
Miata's use a Hall sensor right? Therefore a pull-up is required.Edit -
I don't have my iron on me right now, so I tried touching a 1k across two pads. Didn't work. Probably not the best way to go about it, just figured I'd try.
Last edited by ByteVenom; 12-02-2018 at 07:01 PM.
Thread
Thread Starter
Forum
Replies
Last Post