02 vvt diypnp no tach signal
 

02 Miata vvt isn't getting a tach signal and the anti theft light is flashing. Using the 99-00 crank settings, checked wiring on the inside of the pnp unit and it is correct. Any ideas

Running of vvt sensors or cas? Wouldn't that be 01 thru 05 on setting not 99 to 00?

Vvt sensors. I thought they used the same crank and cam sensors

I don't know just running off cas on my vvt. Wish I was more help. Crank sensor clearance tight?

Runs on stock Ecu

Take a log of it cranking and post it with ur msq. Someone who knows more will help.

will do when i get back over to where the car is.

now looking at wiring compared to what is done to the pnp it looks like 4aa is a common ground to the cam and crank sensor, correct?
https://www.miataturbo.net/attachmen...ine=1453082567

Can you post a composite log of an attempted start?

here is a log of 2 attempted starts. it seems to see rpm for a fraction of a second then nothing

if you needed a pinout, you could have asked...

if you have one i would greatly appreciate it.

Hey Tadd, it's me Don. I am following this so I can keep up on any updates.

let me convert it for the DIYPNP. hold on.

take a look at this:

https://docs.google.com/spreadsheets...it?usp=sharing

Thank you sir.

Crank signal looks OK, cam looks a little noisy but is at least doing something. Can you get a longer log? That one only seems to be a few seconds of cranking.

Yea sure can, I'll try to get over there this evening

Heres another log it should have a few more attempted start sequences on it.