JasonLP Posted July 14, 2017 Report Share Posted July 14, 2017 (edited) Hello looking for the specs for the v44 2.5 MAP sensor.Second questions I should be able to program a aux out MAP signal? Thanks!! Edited July 14, 2017 by JasonLP Quote Link to comment Share on other sites More sharing options...
Adamw Posted July 14, 2017 Report Share Posted July 14, 2017 Hi Jason,You might have to be more specific. What specs do you need? You should be able to just select "2.5Bar" from the list and the calibration is done for you.What do you want the aux output to do? Quote Link to comment Share on other sites More sharing options...
JasonLP Posted July 14, 2017 Author Report Share Posted July 14, 2017 (edited) In short, I would like to output the MAP signal using a PWM signal. Edited July 14, 2017 by JasonLP Quote Link to comment Share on other sites More sharing options...
JasonLP Posted July 18, 2017 Author Report Share Posted July 18, 2017 Could be done but would need a low-pass filter. For anyone else *doubtful* but further troubleshooting would be need to be done. Quote Link to comment Share on other sites More sharing options...
CamB Posted July 19, 2017 Report Share Posted July 19, 2017 (edited) Can't you just use a GP PWM table and populate accordingly?Actually I have just reminded myself that G4 and G4+ are different (G4 can't have a table of frequencies on GP PWM), so:- if you want a PW output, use GP PWM- if frequency, perhaps configure as a speedo output? [won't work - what was I thinking] Edited July 19, 2017 by CamB Quote Link to comment Share on other sites More sharing options...
Adamw Posted July 19, 2017 Report Share Posted July 19, 2017 Yes, it is not clear what Jason is wanting to achieve in this post but he did PM me some more info. I will reply here for others interest.I think he actually wants an analog voltage output to drive an electronic boost gauge in a Porsche. So yes, PWM via a low pass RC network would probably do it. The only problem I see is the ECU aux output is pulled high to 12V so if the boost gauge is expecting a 0-5V signal then there is potential it could see a full 12V under certain conditions and then the smoke would be released. You might want a voltage divider in that circuit too... Jason to answer your question about PWM frequency - Aux 1-4 can do 4000Hz max, Aux 5-8 can do 300Hz max. Quote Link to comment Share on other sites More sharing options...
CamB Posted July 19, 2017 Report Share Posted July 19, 2017 Well that's good because it just occurred to me that my second response above is rubbish - there is no way to map MAP to get to speed to use the speedo output. Quote Link to comment Share on other sites More sharing options...
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