MS3 Lost Sync (Reason 32)

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MS3 Lost Sync (Reason 32)

Postby rocketman051894 » Tue Nov 14, 2017 4:23 pm

Hello all,

I am having a lot of loss sync in my Miata. So much so that it doesn't let the engine run long at all. I replaced both the cam and crank sensors with original parts. I looked in the log file and it says it is reason 32 and sometimes 31. Im not sure what that means or what to do to fix it. I ran a composite log and it seemed normal.

My current setup is a 93 Miata with a 03 1.8L Miata engine swapped into it.
Attached are the logs and the tune file.

Thanks!
Attachments
2017-11-14_18.18.39.csv
(314.99 KiB) Downloaded 11 times
2017-11-14_18.14.33.msl
(908.82 KiB) Downloaded 9 times
Miata_2017-11-14_18.19.44.msq
(285.56 KiB) Downloaded 10 times
rocketman051894
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Re: MS3 Lost Sync (Reason 32)

Postby Matt Cramer » Wed Nov 15, 2017 7:20 am

This may be a case of the cam trigger slipping - they're not positively locked into place on the cam.
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Re: MS3 Lost Sync (Reason 32)

Postby rocketman051894 » Wed Nov 15, 2017 12:59 pm

Matt Cramer wrote:This may be a case of the cam trigger slipping - they're not positively locked into place on the cam.


How would I go about testing/fixing that?
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Re: MS3 Lost Sync (Reason 32)

Postby rocketman051894 » Wed Nov 15, 2017 8:06 pm

Ok, so I reloaded the base plug and play map for the MS3 PNP and it seemed to make the cam and crank log look better. However it is still giving me sync loss and just making the engine unstable and not start.

(the board file uploader is acting weird so I uploaded the files here: https://www.dropbox.com/s/b19bfsvctysmcxi/Miata_2017-11-15_22.01.25.msq.zip?dl=0 )
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Re: MS3 Lost Sync (Reason 32)

Postby rocketman051894 » Thu Nov 16, 2017 4:18 pm

So im noticing that I get a sync loss during cranking right as the cylinder ignites.

Also, I looked at the composite while it did this and I noticed that there is a sync pulse where i dont think a sync should be. I attache the screenshot and data log below.

Screenshot: https://photos.app.goo.gl/KXUFtu7PLWqy7sB53
Attachments
2017-11-16_18.14.28.csv
(20.37 KiB) Downloaded 5 times
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