Go back to previous topic
Forum nameEngine Management Systems & Controllers
Topic subjectRE: Which wideband to go with MS??
Topic URLhttp://forums.2gnt.com/dcboard.php?az=show_topic&forum=54&topic_id=1359&mesg_id=1365
1365, RE: Which wideband to go with MS??
Posted by ner947, Dec-31-69 06:00 PM
I bet the AEM would work fine with the MS... What kind of output does it have... 0 volts = ?:1 AFR and 5 volts = ?:1 AFR? If you are lucky it will fall into one of the catagories in the config file. If it doesn't and you are really motovated you can always code it in yourself.

I am running the latest alpha revision, 025x1 I believe. I've been playing around with different code versions and different MT versions in an attempt to get the realtime barometric correction to work. I just test drove it for the first time tonight, this code version claims to have software fixes for the ~2600 RPM misfire but I still get it, the datalog says that I get random tach spikes (RPM goes to infinity at random points near 2600 RPM's) I think it has something to do with my VR tachometer input circuit because the new code doesn't fix it nor does the old code.

I think that the solution lies in the adjustment of the 2 potentiometers, one adjusts the hysteresis and one adjust the zero crossing point. Right now I have it tuned so the range of the crank angle sensor output, upper side of R54 (on the 3.0 board) or the heat sink side does not go above 3.0 volts and does not go below 1.0 volts. One of the resistors adjusts the range and other adjusts the center point. It's kind of tricky... I had problems with the Opto isolator circuit so I decided to switch over to the non-isolated VR circuit. The Opto circuit on the -extra site always seemed kind of hokey, there is one pull-up resistor there which sort of defeats the purpose of the isolator. In other words my gut tells me that the schematic is wrong.
I generated this page in 0.008681058883667 seconds, executing 6 queries.