How to install 99-05 crank position sensor to ms3pro
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How to install 99-05 crank position sensor to ms3pro
I have a 97’ swapped 90 miata and i have ms3 pro. Ive been doing some turbo prep on the block, and i decided to pick up an ati damper with a 32-2 trigger wheel, but i read that i need to install an nb CPS to even read the new wheel. How do i install this? Do i run it straight to the ecu or do i somehow retrofit the nb sensor to the 1.6 90 harness? It would make more sense to just run it to the ms3 along with the cas wiring, but again i dont know how to achieve this. Still new to the whole standalone thing, thanks!
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It’s in the vvt mega thread, but to sum up, the CAS wiring is crank, cam, power, and ground. You wire power/ground/crank to the crank sensor, and power/ground/cam to the cam sensor on the valve cover. If you don’t have the valve cover cam sensor, I think you can keep using the CAS as just a cam sensor, but I’ve never done that.
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Please explain in fortnite terms
It’s in the vvt mega thread, but to sum up, the CAS wiring is crank, cam, power, and ground. You wire power/ground/crank to the crank sensor, and power/ground/cam to the cam sensor on the valve cover. If you don’t have the valve cover cam sensor, I think you can keep using the CAS as just a cam sensor, but I’ve never done that.
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What valve cover do you have? 99-00 or 01-05 or MSM? Those all have cam sensor locations built into them.
If it's one of those, unplug the CAS, remove it, plug it with the below link, cut all four wires to remove the plug, crimp two wires to the power wire, and two wires to the ground wire. You now have 6 wires. Three go to the cam sensor (power/ground/signal), three go to the crank sensor for the trigger wheel (power/ground/signal). You could wire both directly to the ECU, but these are already pinned through the firewall to the ECU.
https://mossmiata.com/971-029-cam-se...EUmzs_zeHJ6fNn
If you have a 90-97 valve cover, you have no provisions for a cam sensor, so you'll have to retain the NA CAS. You'll still cut the crank wire and run it to crank sensor at the trigger wheel, and either splice into the power/ground at the CAS still, or source power/ground from somewhere else for the crank.
Then you'll change your trigger mode to "Miata 36-2", calibrate, and tune from there. Using the NA CAS as only a cam sensor should work, however that's the only part I've never done.
You most likely don't have a 32-2 wheel, it's probably a 36-2. The way you count is assuming the missing teeth are still there, it's cut for 36, then 2 are cut out, hence 36 - (minus) 2.
If it's one of those, unplug the CAS, remove it, plug it with the below link, cut all four wires to remove the plug, crimp two wires to the power wire, and two wires to the ground wire. You now have 6 wires. Three go to the cam sensor (power/ground/signal), three go to the crank sensor for the trigger wheel (power/ground/signal). You could wire both directly to the ECU, but these are already pinned through the firewall to the ECU.
https://mossmiata.com/971-029-cam-se...EUmzs_zeHJ6fNn
If you have a 90-97 valve cover, you have no provisions for a cam sensor, so you'll have to retain the NA CAS. You'll still cut the crank wire and run it to crank sensor at the trigger wheel, and either splice into the power/ground at the CAS still, or source power/ground from somewhere else for the crank.
Then you'll change your trigger mode to "Miata 36-2", calibrate, and tune from there. Using the NA CAS as only a cam sensor should work, however that's the only part I've never done.
You most likely don't have a 32-2 wheel, it's probably a 36-2. The way you count is assuming the missing teeth are still there, it's cut for 36, then 2 are cut out, hence 36 - (minus) 2.
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What valve cover do you have? 99-00 or 01-05 or MSM? Those all have cam sensor locations built into them.
If it's one of those, unplug the CAS, remove it, plug it with the below link, cut all four wires to remove the plug, crimp two wires to the power wire, and two wires to the ground wire. You now have 6 wires. Three go to the cam sensor (power/ground/signal), three go to the crank sensor for the trigger wheel (power/ground/signal). You could wire both directly to the ECU, but these are already pinned through the firewall to the ECU.
https://mossmiata.com/971-029-cam-se...EUmzs_zeHJ6fNn
If you have a 90-97 valve cover, you have no provisions for a cam sensor, so you'll have to retain the NA CAS. You'll still cut the crank wire and run it to crank sensor at the trigger wheel, and either splice into the power/ground at the CAS still, or source power/ground from somewhere else for the crank.
Then you'll change your trigger mode to "Miata 36-2", calibrate, and tune from there. Using the NA CAS as only a cam sensor should work, however that's the only part I've never done.
You most likely don't have a 32-2 wheel, it's probably a 36-2. The way you count is assuming the missing teeth are still there, it's cut for 36, then 2 are cut out, hence 36 - (minus) 2.
If it's one of those, unplug the CAS, remove it, plug it with the below link, cut all four wires to remove the plug, crimp two wires to the power wire, and two wires to the ground wire. You now have 6 wires. Three go to the cam sensor (power/ground/signal), three go to the crank sensor for the trigger wheel (power/ground/signal). You could wire both directly to the ECU, but these are already pinned through the firewall to the ECU.
https://mossmiata.com/971-029-cam-se...EUmzs_zeHJ6fNn
If you have a 90-97 valve cover, you have no provisions for a cam sensor, so you'll have to retain the NA CAS. You'll still cut the crank wire and run it to crank sensor at the trigger wheel, and either splice into the power/ground at the CAS still, or source power/ground from somewhere else for the crank.
Then you'll change your trigger mode to "Miata 36-2", calibrate, and tune from there. Using the NA CAS as only a cam sensor should work, however that's the only part I've never done.
You most likely don't have a 32-2 wheel, it's probably a 36-2. The way you count is assuming the missing teeth are still there, it's cut for 36, then 2 are cut out, hence 36 - (minus) 2.
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Oh I’m well aware the 90-93 never had a crank sensor in the front. The CAS is your crank sensor though. It reads cam and a simulated crank sensor off cam speed. So you’re just extending that wiring to a real crank sensor.
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Re:
What valve cover do you have? 99-00 or 01-05 or MSM? Those all have cam sensor locations built into them.
If it's one of those, unplug the CAS, remove it, plug it with the below link, cut all four wires to remove the plug, crimp two wires to the power wire, and two wires to the ground wire. You now have 6 wires. Three go to the cam sensor (power/ground/signal), three go to the crank sensor for the trigger wheel (power/ground/signal). You could wire both directly to the ECU, but these are already pinned through the firewall to the ECU.
https://mossmiata.com/971-029-cam-se...EUmzs_zeHJ6fNn
If you have a 90-97 valve cover, you have no provisions for a cam sensor, so you'll have to retain the NA CAS. You'll still cut the crank wire and run it to crank sensor at the trigger wheel, and either splice into the power/ground at the CAS still, or source power/ground from somewhere else for the crank.
Then you'll change your trigger mode to "Miata 36-2", calibrate, and tune from there. Using the NA CAS as only a cam sensor should work, however that's the only part I've never done.
You most likely don't have a 32-2 wheel, it's probably a 36-2. The way you count is assuming the missing teeth are still there, it's cut for 36, then 2 are cut out, hence 36 - (minus) 2.
If it's one of those, unplug the CAS, remove it, plug it with the below link, cut all four wires to remove the plug, crimp two wires to the power wire, and two wires to the ground wire. You now have 6 wires. Three go to the cam sensor (power/ground/signal), three go to the crank sensor for the trigger wheel (power/ground/signal). You could wire both directly to the ECU, but these are already pinned through the firewall to the ECU.
https://mossmiata.com/971-029-cam-se...EUmzs_zeHJ6fNn
If you have a 90-97 valve cover, you have no provisions for a cam sensor, so you'll have to retain the NA CAS. You'll still cut the crank wire and run it to crank sensor at the trigger wheel, and either splice into the power/ground at the CAS still, or source power/ground from somewhere else for the crank.
Then you'll change your trigger mode to "Miata 36-2", calibrate, and tune from there. Using the NA CAS as only a cam sensor should work, however that's the only part I've never done.
You most likely don't have a 32-2 wheel, it's probably a 36-2. The way you count is assuming the missing teeth are still there, it's cut for 36, then 2 are cut out, hence 36 - (minus) 2.
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Yes, get a 99-00 or MSM valve cover and wire the NB cam/crank sensors using your 36-2 trigger wheel. You won't damage an engine as long as you don't crank it endlessly when it's not starting. That may wash the new rings with fuel. Be smart, wire it correctly, tune it correctly, and it'll start right up.
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