ttcamaro

Im doing something a little different. I put a bs3 on a supra. Im using johns crank trigger and a msd cam sensor which is on the timing gear. My coils have power. Checked wiring everything seems good. Battery was a little low so i have been letting it charge. Motor cranks fine so i figured everything should be good to go. I currently have the COP at 350 which should be enough to fire the car but i get nothing on the rpm screen nor anything on the tack.

Any help would be appriciated

Jake

Shawn @ VA Speed

iTrader: (3)

which crank sensor do you have,2 or 3 wire?

Phil99vette

iTrader: (11)

Have you done the BAL to verify its seeing the Cam sensor?

Shawn @ VA Speed

iTrader: (3)

after thinking about it,i don't think you can use the msd cam sensor with COP,how do you have it wired?

ttcamaro

John told me to use this sensor. its a 3 wire meg sensor. hal effect i believe. The crank is a 3 wire 22 or 4 tooth sensor(its the one john designed.

thanks for the replies

ttcamaro

can you explain BAL? the sensor has a light on it so when the motor rolls past it light goes off at TDC

I set the Crank trigger up so 30 degrees before tdc a tooth is lined up. however a tooth lines up every 20 or 30 degrees. In the configurations do i need to let the bs3 know what wheel im using? i would think this is important?

Shawn @ VA Speed

iTrader: (3)

is the cam sensor 3 wire,and if so,what does it trigger off of?

ttcamaro

3 wire
Meg is pressed into the cam gear and picked up at TDC.

There is also a wire that John added to the box but never said what to do with it. its labeled DL triger? I will have to try him again tomorrow and see what it is unless someone here might know

Fireball

iTrader: (21)

isn't his 24 tooth sensor 2 wire?

Shawn @ VA Speed

iTrader: (3)

the old style 24 tooth was a 3 wire-the wheel had square cutouts instead of the rounded cutouts

Fireball

iTrader: (21)

gotcha...

did you do the measurement to verify the cam sensor drops from 12V to 0V near TDC at the BS3 connector?

veee8

iTrader: (40)

That is the Datalogger trigger wire. Unrelated to your problem.

ttcamaro

Figured out the problem. When i was cranking my switch 12V was going dead. For what reason i dont know. I now get rpm and spark. I will just have to locate a good switch 12v and the car should be ready

Fireball

iTrader: (21)

its the little things that'll bite ya...