I live in France , my fd has an european ecu (year 93), since i wan't 255 hp, I've bought japanese ecu (year 95).

when the fan run, idle jump 1000 to 1500, after fan stop idle is good: 850 rpm.

Problem with water temp sensor? mines is Year 93, need I water temp sensor year 95 to resolve idle hunting.

Thanks for Help

 

Hi I had the same problem with my European FD.
I Had a japan ECU, and When the fan comes on, the idle go between 2000-3000rpm.
Now I use an USA ECU, and the engine runs fine