2000 Miata no sync
Can anyone point me In the right direction? No spark not synced won’t start. Swap to stock ecu, hook up maf, and it runs just fine.
https://cimg4.ibsrv.net/gimg/www.mia...9c715d317.jpeg |
Originally Posted by Rc 415
(Post 1590230)
Can anyone point me In the right direction? No spark not synced won’t start
https://cimg4.ibsrv.net/gimg/www.mia...9c715d317.jpeg https://cimg5.ibsrv.net/gimg/www.mia...1acf28f00.jpeg https://cimg5.ibsrv.net/gimg/www.mia...3016c65ac.jpeg https://cimg3.ibsrv.net/gimg/www.mia...e65454778.jpeg https://cimg7.ibsrv.net/gimg/www.mia...515b67705.jpeg |
1 Attachment(s)
here is the .csv
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1 Attachment(s)
moved crank sensor closer to trigger wheel still no sync but looks like it reads crank now?
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https://cimg3.ibsrv.net/gimg/www.mia...9d1d2a64c.jpeg
Does anyone recognize who makes this so I can perhaps get some help? It has no potentiometers to adjust and JP1 a J1 have no jumpers at all. J7 has a jumper but it’s hidden under another board right behind the map sensor. |
Your board says "MS Labs" on it, hence it should be one of Dimitris' @Reverant units.
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That latest log still doesn't show a cam signal. Here's what it should look like. Green line is cam, blue crank, red is sync loss. You have a lot of red because there's no cam signal.
https://cimg8.ibsrv.net/gimg/www.mia...9d45868ba4.png |
So I tried replacing the cam sensor entirely and when I took a composite log, it caused me to lose crank sensor reading as well. Swapped back to original cam sensor and crank signal came back but still no cam. I’ve send dimitri a message in hopes he can steer me in the right direction re: JP1 and J1. JP7 on my board has 3 pins. And two of them are jumpered. I’ve tested continuity on the power, ground and signal wires on both crank and cam, both are good. Can anyone tell me, in cranking settings, will rising edge or falling edge make a difference when it comes to getting the correct signal? Appreciate the replies
edit: I think it’s worth mentioning that the car runs fine on the oem ecu, with maf connected. the car is a 2000 Miata NB non vvt |
This board runs optoisolators, there are no jumpers to set whatsoever. Either the optoisolator OK1 under the blue board is faulty or the input on the MS3 daughterboard is faulty.
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Originally Posted by Reverant
(Post 1590378)
This board runs optoisolators, there are no jumpers to set whatsoever. Either the optoisolator OK1 under the blue board is faulty or the input on the MS3 daughterboard is faulty.
https://cimg7.ibsrv.net/gimg/www.mia...c05aa26dd.jpeg https://cimg3.ibsrv.net/gimg/www.mia...5bb7521ab.jpeg https://cimg6.ibsrv.net/gimg/www.mia...426a4ef80.jpeg |
Originally Posted by Reverant
(Post 1590378)
This board runs optoisolators, there are no jumpers to set whatsoever. Either the optoisolator OK1 under the blue board is faulty or the input on the MS3 daughterboard is faulty.
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Originally Posted by Reverant
(Post 1590378)
This board runs optoisolators, there are no jumpers to set whatsoever. Either the optoisolator OK1 under the blue board is faulty or the input on the MS3 daughterboard is faulty.
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I am able to trace continuity from the collector pin 5 on ok1 to a pin as seen in picture on the ms3 daughterboard. From that pin, I can get continuity to the processor, also as seen. Does this mean that it’s possible the input on daughterboard is good?
https://cimg9.ibsrv.net/gimg/www.mia...4c30ac08d.jpeg https://cimg0.ibsrv.net/gimg/www.mia...4de1d2c14.jpeg |
Tap the pin of the daughterboard (the one you put the red probe on) to ground repeatedly and check if you get a cam signal on the composite logger. If you do, the daughterboard/processor is fine and you probably need to replace the optoisolator.
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Originally Posted by Reverant
(Post 1592244)
Tap the pin of the daughterboard (the one you put the red probe on) to ground repeatedly and check if you get a cam signal on the composite logger. If you do, the daughterboard/processor is fine and you probably need to replace the optoisolator.
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Last check before you go on replacing it, go to File -> Vehicle Projects -> Project properties -> Settings -> PORT_STATUS: Activated.
Now create a new dashboard, you'll have the status of each processor pin (both in and out) as an indicator, PORTXn, on the bottom. Check for the PORTTn indicators, PORTT5 should be blinking when you tap the processor's cam input to ground. |
Originally Posted by Reverant
(Post 1592497)
Last check before you go on replacing it, go to File -> Vehicle Projects -> Project properties -> Settings -> PORT_STATUS: Activated.
Now create a new dashboard, you'll have the status of each processor pin (both in and out) as an indicator, PORTXn, on the bottom. Check for the PORTTn indicators, PORTT5 should be blinking when you tap the processor's cam input to ground. |
The CPU is fine then.
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Originally Posted by Reverant
(Post 1593382)
The CPU is fine then.
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Well I'm starting to think that someone has changed the cam input from JS10 to "MS3X Cam In", post a screenshot of your crank/cam settings.
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