Hey, I emailed Rev but never heard back. I'm maxing out my 250kpa map sensor and was wondering what the easiest way to change to a 4 bar would be. It is an ms3 mini. Can I do an external sensor or will I need to solder a new one on the board?

 

Or you can use the spare analog input that is available on the MAF input.

 

So just 5v power, ground and then send signal through the MAF input? Do you know off hand what that maf input pin is? Is it ADC1? Thanks!

 

ADC11/EXT_MAP. Yes on the 5V and ground. You'll need to install a jumper that is under the MS3 daughterboard on the ECU to enable the MAF input.

 

Thanks! I ordered an mpxh6300, I'll make a case for it and give it a try. Can I use the onboard mpx4250 for baro correction?

 

You have to upgrade to firmware V1.5 to do that I think.

 

Ok I'll maybe not do that, everything is working well right now and I don't want to mess it up.

 

Can you guide me where I have to install this jumper? Trying to use an external MAP sensor with the OEM MAF harness but I see nothing on ADC11.

MS3 Mini 99-00, Revision 2.0c

 

There's no jumper required to use the MAF input on a 99-00. The input for that is on ADC13.

 

works like a charm, thanks