L28et Dizzy no rpm Ms2extra

[supershanesta]

Hey guys. My last issue is with my Dizzy on my MS2extra

 

I have had it working at some point during testing, but now it is not getting signal in car.

 

I have 12v power in red position on dizzy

I have white wire (tach wire) from ms2 harness in white wire position on dizzy

I have black wire (tach wire) from ms2 harness in ground position on dizzy with pull up resistor in ms2.

 

I have it wired and try to spin the dizzy by hand with no results in basic mode or in wheel mode because I am using the DIY wheel.

 

If i tap the black tach wire to the white tach wire (creating the tach current) I get rpm signal, but through my dizzy I do not.

 

I had one cas that came with the car that never worked so I bought the replacement to put in that worked, but now suddenly it seems fried or something.

 

Is there an easy way to test out the cas unit?

 

Thanks,

 

Shane

[Matt Cramer]

You can use the tooth logger feature to watch the signal coming in. See this link for how it works:

 

 

[softopz]

I think you did fry this second possibly. Why is your ground hooked to the pull up resistor? I usually ground the CAS to MS sensor grounds (which is all internally grounded in MS)

the white white to pin 24through pull up. 

[supershanesta]

Softopz,

 

It was related to my second faulty CAS sensor. I replace it and I got rpm signal with zero drops.

 

Thanks,

 

Shane

[Chickenman]

I think Issa has a faulty CAS sensor as well. Trigger and Tooth logs are all over the place and intermittent.

 

Car ran great one run, then  as I watched in real time,   the Tooth logs took a dump and the car died.  Trigger logs and Tooth logs were very broken up. Think CAS said.... Buh Bye!!