Are you sure the scope is hooked up in the right direction? one side is ground one side is trigger in.. i wouldnt know which way to hook it up...

chances are its backwards

 

Looking at the factory schematic, I think I have it right following the flow of electricity thru the cas I hooked up the positive to the white/black wire and the green wire to the negative of the machine.

 

Testing again.

No matter what polarity, the trailings fire the same way as before crossed if you read the first thread.

So here is what the sine looks like. I have change the settings on the wolf to use the falling edge of this type of wave. What do you guys think. I had to move the cas a few degrees to make it zero out again. Car runs smooth, maybe even smoother. Is this wise?

 

i have mine hooked up like in example 2, but using rising edge. im going to change it to falling and see what happens. brb

 

ok i just redid mine..

i changed it to falling edge and it confirms that my signal is indeed what you posted since my timing retarded itself a few degrees (being triggered by the latter part of the wave).

so now, its wired like example 2, and using falling edge.

im posting new map with my adjusted settings.

I zerod my timing out after doing this and it doesnt feel any different than before. the rising edge was triggering it fine, however i no longer get errors on startup. woohoo.

 

Now thats interesting that the errors are gone. My T2 CAS output is like in the Wolf manual and is different to your waveform(as viewed by my scope). I have set mine to rising edge trigger. It runs without errors most of the time but just every now and then it runs errors on cranking.
Michael Smith

 

The wolf manual doesnt show which way to wire it for rising or falling edge, only dealer tech 2 shows that..

take a look at the page that was posted from dealer tech 2 and look at your wiring =]

I had mine wired backwards for the trigger type.

before id get some errors on cranking... now nothing

 

Yer my manual does have the correct wiring information in it Version 4.40 rev 1.008 pages 10-14 but there is other info in my old V3 manual too I think it has the wiring diagram with colours.
And on page 12 says V4.40rev1.008
Quote
The output of the reluctor output must be like this....(and it shows a waveform for a )leading edge trigger

__ |\_
\|
If the reluctor sensor is wired the other way, the ignition timing will change incorrectly as engine rpm changes.
Quote

Just reading from the manual but this could be becasue it doesn't mention the falling /rising edge trigger settings. Maybe this is the default setting leading/rising edge trigger and saves confusing people.
Michael Smith
Sorry for the crappy wave form it looked ok when I wrote it but the poster mangles it DOH!!!

 

yes but the install manual doesnt tell you what wires on the CAS are what =]

it shows you a picture of what that waveform looks like, but if you switch the wires you invert the wave(which was my problem).

look in dealer tech 2, make sure you have it wired/set how its listed there. it lists the proper colors of the CAS wire and everything.

 

Nyt , I had a look in my V3 Manaul page 60 had the wiring layout and colours for the modified CAS so thats where my memory of the wiring diagram comes from. I do have some of the dealer techstuff which I downloaded. That day there seemed to be no login required and I downloaded all the info I could. The next day you had to login again,so I didn't have access to the rest of the documents.
Regards
Michael Smith

 

theres no login on the wolf site now for dealer tech. its all available.

the page from dealer tech 2 was posted in this thread.. go through it youll see it

 

Michael, can you post the V3 manual picture?

When I have time, the weekend. I"m goign to reverse the wires and try falling edge to see how much smoother the car will start.

Right now I have it set with option1 in wiring using the falling edge instead of the rising edge as wolf suggest for that option. Right now I get 0 errors when starting up. Sometimes I get 1 error.

C

 

switching the wires AND the trigger type will put you exactly where you were before.. to make a change you need to do one or the other =]

find out how its wired up, then set the trigger properly to that

 

I want to see if the falling edge will trigger better because of the CAS desing. That's how the stock system is configured and wired.

 

I don't think it will make any difference, it should be a mirror image of the wave.

im using falling edge now...

i used to see a bunch of errors when i had it set incorrectly to rising edge when i would start the car..

now 1/10 starts ill see 1 error on starting, which is just from low signal from the CAS.

 

Ok so I swapped the wiring to make it match option 2. Bad choice to do. It revved but the tach needle was not smooth. it was jumpy. Neither rasing or falling edge option on trig1 or trig2 made any difference in the jumpiness of the tach. Yes I put them both the same to match. The tach is hooked up directly to the wolf output.
I did notice also no errors when starting up but the tach was jumpy and you can feel the engine was not smooth like before.

I put back the wiring back to option one and it revved smooth again. Looks like i'm going to stick to option 1 and change back to rising edge as wolf recoomended over the weekend.

C

 

youre using dual pulse right?

after you changed the options, did you reset your timing?

 

Using ref/sync. Yes reset timing. Tach was jumping like it wasn't getting a good signal.
Swapped back and it was good.

C

 

you changed trigger1 and trigger2 right?

 

Yup, that's what I said

 

maybe we are looking at the differences between later revisions of V4 wolfs?
Wolf may have done some work on there trigger inputs and put this in later revisions enabling good functionality in both rising and falling trigger, while the early version prefered rising only!
Michael Smith

 

I see no difference with either falling or rising when using option 1 for wiring. But when I swapped the wires to reverse polarity to use option two, the unit was not happy.

 

interesting. im using option 2 with a dual pulse cas and its working fine.