Unfortunately, our europe Evo IX came without a MAP sensor. The hole in the intake manifold is blanked up by the factory. In this case, can we convert to SD?
We have to wire up the MAP sensor to the ECU?
Will the ECU know about the MAP sensor once is it hooked up?

Thanks

 

https://www.evolutionm.net/forums/ec...y-patches.html

Read this from the begining to the end firstly.

 

Thank you for this respons. But you didn't get my question.
The USDM cars have a 1 bar MAP sensor. EDM cars have NO SENSOR AND NO WIRE TO THE SENSOR!!! - This is my question, can i use SD patches. We use 8884001x files

 

yes you can but i beleive most use 9653 rom. you will need to wire in a MAP sensor (3 bar or another popular one from the forum).

in order to run SD you will need a MAT or IAT to log temperature on the intake manifold.

 

Yes, this was my question. So i can change the my file with a 9653 file, put my immo and the car will start?

 

It would be much easier to use a GM/Apexi map sensor and just wire that to the ECU.

Some Apexi sensors top out at 2.2 to 2.3 bar.....

The temperature if you use a GM will be different between compressor inlet and inlet manifold.If you will use this sensor to the correct AFR than it will be ok.

Divergence between IAT and MAT is not large, and it will richen when your intercooler heat soaks.

You must search for the scaling. IAT calibration table ifrom the ECU converts voltage to temperature.

The only situation where MAT< IAT it will be ice cooling of the intercooler, water/alcohol injection or CO2 etc..

I did this operation by changing my intake manifold with a Evo IX RS manifold in order to have the temperature and pressure sensors near to each other.

I remain with one GM IAT and one GM Map sensor extra....plus harness if you need.....

 

And yes the ECU will know that you have a MAP connected.You need to make the connections to wire the sensor.

If you need to use SD than you need to open some options inside the rom.

If you need it only to log boost than EDM roms are prepared for a MAP without any modification.

Just wire the sensor to the ECU....

 

@Danieln - Did you made this modifications in your car? Do you run SD or just log boost?

 

I am still on MAF for the moment..

I get prepared only but I did not go further with SD yet. I made some test with this but I did not have all the tools I needed.

SD will give you pretty much the same power from my point of view. You need to remove the inlet pipe on the car because you will not see gains if you don`t do this. Use rather a 4" inlet pipe.

The problem seems to be at idle.....on SD. With SD the drive-ability will be much better and the car will feel smoother and a quicker spool....

This maybe guys with SD can tell you more....

I still want to use MAF for the moment.

Fitting a MAP sensor and getting the scaling adjusted depending on the type of the sensor is critical for SD.

I have a JDM IAT sensor at this moment and I am forced to use a JDM rom on my car in order to have the specific scaling for this.

Some faults must be corrected but it works. Ideally is to wire a temperature sensor to the UICP or better the inlet manifold.

GM sensors apparently scale the same as the MAF's IAT sensor. Then flash the ECU with an SD patch and you start to tune the car.

SD map require more retuning with mods that affect volumetric efficiency.

Also the weather condition is important when you run SD.

SD fuel trims are tighter than on the MAF sensor.....