hello everyone. i’ve been struggling with my emupro spark. I installed on a porsche 930 engine with ITBs. When I start the engien it shows RPMs and primary Synced.
I got a Hall cam sensor kit (it uses 1 bolt on the back of the cam for reading) and the crank sensor kit (vr) 60-2 from clewett. I populeted the trigger parameters like this.
Coils and injectors are assigned. Is a 4 pin active coil on plug setup, it has good +V, 2 good -V, but i see no signal from the ECU.
Prymary
crank sensor, 60-2 wheel, falling edge, sensor type VR, no pullup resistor.
Secondary
cam sensor, 1 tooth, Hall sensor, pull up resistor 1K, falling edge
I have a question before anything else. I try to do an output test of the coils, it only has a wick signal when i change the coil type to pasive (no spark). Could it be a hardware problem, or am i missing a setting
Befor focusing on the spark u should try to get a clean scope.
I would play with threshold, edge, and filter settings. Probably u have a very noisy signal. Pullup is not needed for VR.
U could also check the gap bewteen sensor and the wheel.
If this doesn’t help u need a oscilloscope.
U connected the sensor to digital ground?
Power supply and ground for the ECU is also good?
Hey derUltraTT, thank you very much for your support!
I finally have spark!
Like you suggested “derUltraTT” the primary trigger was not good. I was able to get a good reading by playing with filters. Like you and Chris in ECUMASTER suggested.
I’m also using a Clewett 60-2 wheel with the Clewett VR sensor. These settings are working well for me (EMU Black, V3). What settings are you using? This is for a 3.2 short-strike non-turbo 911.
I used “none” for the pullup/pulldown with no issues for months, but encountered problems in cold weather, possibly due to slower cranking speed (that’s my guess). Switching to the 4K7 pulldown seems to have fixed that, I was able to coldstart at 0C recently. I have not tried changing “Cranking gap detection scale” or “enable CAM sync tooth window” settings.
