LEM G3 map sensor

[Daniel Burgess1436215411]

Hi guys

 

I have a LEM G3 running an ej20 subaru racecar  Currently im looking at using this instead of upgrading and juggle a few things and put a few different connectors to analog and digital inputs but my question is  because i have upgraded to g4 software and i want to run more than 21psi  (3bar)  I have to run a GM 3BAR I now have no inputs left for say flexi fuel ethanol sensor, boost control dial or oil temp

 

Is it possible to remove the internal map sensor and solder wires in the same location or my  GM 3 bar sensor ?

[Daniel Burgess1436215411]

I have found some datasheets to identify the pins of the internal map sensor  with map signal(vout) ground and the 5v input(VS or vcc)  but unsure of the others be V1, V2, and VEX

[Daniel Burgess1436215411]

http://www.linkecu.com/forums/lem/115147585     have just found this also    if i was looking to run 25psi boost 

http://nz.rs-online.com/web/p/pressure-sensors/7191106/    MPX5700AP

would this replacement internal map sensor would be suitable or  far too large?

 

This would also be set to 7 BAR Map Sensor on the PC Link software

[Daniel Burgess1436215411]

Between 15-25 psi boost would be the range it is going to be used in

[Simon]

The MPX5700AP was what we used as the &bar map option

[Daniel Burgess1436215411]

Do you recommend swapping to the 7 bar or keep gm 3bar?

[Daniel Burgess1436215411]

Are there any alternatives to the mpx5700ap or is it of your under 22psi you run the 2.5 and over you run the 7?

 

Will the 7bar still be accurate for what we are trying to acheive?

[Simon]

You are limited by the selections in PC link. SO for a LEM the is 7 or 2.5 bar.

It will do the trick for you.