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No cam signal (MS3)

 
Old 03-30-2019, 06:38 PM
  #1  
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Default No cam signal (MS3)

Had VVT head. Swapped to non-VVT head. Cam sensor wiring was extended, but wired the same as before. It has ground, reference, 12v going to it.

Not getting a signal for it in the MS.

Have 36-2 trigger wheel (spark mode set to Miata 36-2). Ignition input I've tried both rising and falling edge.

Have tried 3 different cam sensors. One from a 99, other two came out of the previous VVT head at various points. I know for a fact at least one of them was working last year. Unlikely any of the 3 are actually bad.

Attached is composite log if it's of any use? Unsure what else to check. Also attached current tune.
Attached Files
File Type: csv
comp log.csv (10.6 KB, 4 views)
File Type: msq
no start 33019.msq (286.8 KB, 5 views)
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Old 03-30-2019, 08:26 PM
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This is how I have the cam sensor wired: http://i.imgur.com/mkG2va7.jpg

Left to right - ground, signal (green/yellow wire from car - '96), 12v.
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Old 04-01-2019, 08:14 AM
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Turns out that wiring is backwards. Needs to be 12v, signal, ground.
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