1RMDave

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?

Reverant

iTrader: (10)

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

1RMDave

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!

Reverant

iTrader: (10)

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.

1RMDave

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?

Reverant

iTrader: (10)

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

1RMDave

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

IMYF

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

Reverant

iTrader: (10)

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

IMYF

works like a charm, thanks