dontz125 wrote:Unfortunately that sensor is fairly large for a simple swap-in for OEM VR sensors - car VRs are big and clunky; bike VR sensors tend to be ... compact. Also, you listed your pinout as +12v, GND - and EIGHT volts output?
Hi buddy, just seen this, been dormant a while, but as I am playing with EFI again and using this sensor, thought I'd update the post!
Yep, I got the pinouts wrong, #1=8V (supposedly, but I've hooked it up to 12V too, no issues to date), #2 = output , and #3 = GND. Sensor is able to go in my bike heads with stepped adaptor bush, size wise its 25mm above the surface 24 below, and needs a Ø20mm bore to seal & comes with 500mm lead and 3 pin male JPT plug.
Interestingly, I struggled to get this Hall sensor to work this time, using the official useasydocs suggested layout, on a MicroSquirt v2 "Dual Tach Inputs". In the end, to get reliable start up performance, from 40 - 8000 rpm, I used the following connections.
Sensor 2 Output = VR2IN+
Sensor 1 Output = OPTOIN-
+5V (Vref) = OPTOIN+
Might help somebody else, but I'm wondering if this is a settings issue & some other combos might work too.
The v3 was a little harder, which again was surprising, as it worked great with the twin VR set up previously, so I thought it'd be a walk in the park with Hall sensors. Daft bit was I hadn't found the latest useasydocs document info, so I was forced to look at the MAX9926 data sheet and try and understand what was happening.
This latest update, link
here was spot on, and BTW, I did use a pull up resistor referenced to Vref too
Happy holidays to you all, & glad the website is back.
Mike
