new holland T4.100 (same as T5?) raise rpm limiter

[michelebra]

Hello,
this tractor from newholland (as many others...) has a rpm limiter at 2400rpm.

ECU is EDC17c49 (P_826 7.5.0)

I would like to raise it just a little bit to make my wife's father happy and let him reach 40km/h on road transfers (mechanical gearbox).

Downloaded the flash (see attachment)... but any of my attempts resulted in increase engine speed.

I think is the same "limiter" as per T5 model.

I am start thinking of some limiter encoded in the eeprom.

Anyone has any idea or solution available ?

Thanks a lot

[antonio84fr]

Hi, I try to increase rpm limiter and speed limiter on t5 115hp but I have no results. I think this limitation can be in the eeprom or in the thacho... We need one person that know this.
I have t5 115 and t4 110... Same hardware ecu but different software versions

[michelebra]

Hi, I try to increase rpm limiter and speed limiter on t5 115hp but I have no results. I think this limitation can be in the eeprom or in the thacho... We need one person that know this.
I have t5 115 and t4 110... Same hardware ecu but different software versions

Earlier version of iveco motor has the Speed (km/h) or engine speed (rpm) encoded in the eeprom ECU.
with some tools was possible to recode that and insert the new string that unlock features.

There's an app online to make it happen and with Iveco E.A.S.Y was possible to insert that string.

I have newholland diagnostic tool, and when i want to monitor motor, it launches E.A.S.Y. but i think is a shrinked version without important features...

Maybe a better start is to obtain proper iveco complete easy suite...

[antonio84fr]

I understand.... Are you Italian? We can talk about it to take some results

[michelebra]

I understand.... Are you Italian? We can talk about it to take some results

yes, i am from Italy...

[greyg]

now is 25km/h?

[antonio84fr]

Now is around 36km/h at 2400rpm, the limiter is at 40km h