Hi Guys,

I face a strange issue with the ACD unit to an EVO 9 RS.

The car recieve some modifications in accordance with Group N cars.

It`s a car prepared for rally championship N Gruppe.

After the transfercase was changed, the ACD unit enter into a fault code and all the 3 lights are on at the same time.

So the differential is not doing no longer pressure.

Strange thing is that I face this issue only with the original ECU. If I switch the modified race ECU, the differential respond and the error disappears so the lights became normal.

I know that at Mitsubishi dealer there is a special way to engage the ACD pump

What is all about?

Can I do something in order to fix this issue?

Thanks

 

Sounds like the system wasnt bled properly.

 

^ +1 just came here to post this.

 

what about the issue with the second ECU?>

why with a modified ECU (engine ECU) the differential respond?

Still ..... dont know what is the issue.....

 

The t-case has to be bled. I know sometimes with modified ECU's they aren't as sensitive as the stock ECU. Bleed the t-case and you'll be fine!!