What's up,
When I finally start boosting, I will be using map based tuning as opposed to maf with my emanage ultimate. The boost gauge I want to run uses a sensor module that outputs 0-5v:

http://www.plxdevices.com/product_info.php?id=SEMOSMVB

The problem is that the greddy pressure sensor is 3 bar and the PLX is 2 bar. How can I use the PLX sensor module in place of the Greddy map sensor?

A way around this would be to select a factory sensor, but which factory map sensor is 2 bar in the emanage software?

 

You can tee off a vacuum hose and run both, keep the module for the gauge and the greddy sensor for the emanage. I run the greddy pressure sensor for the tune and the zeitronix sensor for readout. If you don't want to do this then you should be able to select each one and see what the readouts are vs the greddy pressure sensor. 2 bar vs 3 bar should be the same readouts because bar just means the height of the range it can reach like 25 psi vs 75 psi.

 

Well I kinda want to kill 2 birds with one stone since I dont have the greddy sensor yet. Plus I can't justify spending $150 for the greddy one, when my boost gauge setup will output a map signal to an aftermarket ecu. Also, the thing about 2 bar vs 3 bar, they both correspond to different psi @ 5v:



I've read on other forums people using GM 2 bar sensor with emanage blue, but I don't know if the blue has software that enables you to input 0 V = -24 psi to 5 V = 29 psi...or something along those lines.

 

I got one/the knock off one on ebay they are $20-$40. Had it for years and it works fine. I see what you are saying I thought the difference was the max range. I can't help you there.

 

after a bit more research, I see that people using 2 bar sensors input it using the tps signal, which is no good for me. I didnt realize there were knockoff sensors.

 

http://www.ebay.com/itm/Emanage-E-ma...6fbc28&vxp=mtr

 

I remember getting my greddy map sensor for about $50, i definitely did not spend more than 100.

 

Thanks. Definitely a lot better than $150 for the real one.

 

Just for future reference for someone searching:
I contacted PLX. They confirmed that both the gage out and analog out maxes out at 30 psi (2 bar). I have no idea why they say its a 3 bar map sensor. The guy told me it can "tolerate" up to 3 bar but only functions at 2 bar. I have no idea how thats relevant for anything...my guess its just a marketing ploy to get unsuspecting buyers.