VVT observations - current vs. advance
#141
I have all the 2001 sensors and my MSII I built 2 opamp circuits for the CAS inputs. it works great, and I'm wont to 'fix' something that isn't broken, BTDT...
I've not researched into the mods required for the MK2 inputs, but I've read of people having lots of issues, true? Or will my two opamps suffice?!
I've not researched into the mods required for the MK2 inputs, but I've read of people having lots of issues, true? Or will my two opamps suffice?!
-Abe.
#142
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again I'm not denying a crank trigger is better, but atm I'm fed up on messing with the car for little gain, I'm trying to cencentrate on reliability/drivability.
#143
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Oh yeah, if you've got opamps on there already, then it's a no brainer - the op-amp input was originally used FOR the MK-II sensors, that's how it found it's way into the miata world (more correctly: I popped open my OEM ECU and copied the circuits I found there)... So you're running the official NB circuit readout, you can't ask for more. Really, it should be no trouble at all. It's never as easy as it seems but I would suspect you're looking at 10 minutes of wiring under the hood, you'd never need to open the MS.
-Abe.
-Abe.
#145
As long as the VVT advance doesn't put you past the crank tooth (I believe Y8s showed it does not) then you should be able to use the OEM sensors just fine. You should be able to switch back and forth no problem, then change one setting in software and see how it goes. Personally, I love tests where you can undo them if they go horrifically wrong. :-) Post in my board thread or spark inputs thread. There will be plenty of folks anxious to help - and I've got some potential customers who want to run my board (op-amp inputs) on their VVT motors.
#150
Glad to hear it, it'll pay off! Sit there with an timing light and you'll know.
https://www.miataturbo.net/megasquirt-18/abe-jasoncs-nb-cam-crank-input-circuits-25789/
If you have questions, post them there, everyone who knows anything about it is subscribed.
https://www.miataturbo.net/megasquirt-18/abe-jasoncs-nb-cam-crank-input-circuits-25789/
If you have questions, post them there, everyone who knows anything about it is subscribed.
#151
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CHeers Abe, my CPK and CMK circuits are as per the MSII guide
http://www.msextra.com/doc/ms2extra/MS2-Extra_4g63.htm
so I do't think I need to do much bar wire the two sensors up and change the software settings.
I'm just taking my sweet time making a nice harness
http://www.msextra.com/doc/ms2extra/MS2-Extra_4g63.htm
so I do't think I need to do much bar wire the two sensors up and change the software settings.
I'm just taking my sweet time making a nice harness
#152
I'd highly recommend the dual op-amp circuit talked about in the other thread and used with great success (several folks have built this circuit and seen their drops and cut outs stop) in my adapterboard (several folks are driving around with it happily).
Again, we're cluttering up this guy's thread, let's start a new one? Either way, good luck and I'll be happy to help any time via IM, email, or a subscribed thread.
Again, we're cluttering up this guy's thread, let's start a new one? Either way, good luck and I'll be happy to help any time via IM, email, or a subscribed thread.
#155
I installed the final board revision in the car a week ago and have been testing it through last weekend's auto-x and the duration of the week. I was hoping the latest software revision was going to be "the one" but it's hit a snag. I believe that I corrected it this weekend, but we'll see. I put 50 miles worth of various logs on the car and controller today. It's funny how different the car is with the OCV disconnected.
The two major items on my punch list are as follows:
-Reliable and solid bootloader operation
-Help File/Manual
My goal is to have all said and done no later than next month, if not sooner.
The latest setup that I have yet to post:
The two major items on my punch list are as follows:
-Reliable and solid bootloader operation
-Help File/Manual
My goal is to have all said and done no later than next month, if not sooner.
The latest setup that I have yet to post:
#158
In all, everything will be documented in the included help file .
#159
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Kevin,
Does it have the circuit built in to directly understand the stock cam and crank sensors? If so will I be able to have the signals then goto MS without needing to build the circuitry for it?
Does it have the circuit built in to directly understand the stock cam and crank sensors? If so will I be able to have the signals then goto MS without needing to build the circuitry for it?