OK, so I have an HFS-5, and, to be completely honest, I don't go through too much juice on a day to day basis. In fact, there are some days that I probably don't even make it into spray.

So here's my question- should I just turn the DDS3 off until I'm ready to use it? Is there a real difference in component life leaving it on vs. turning if off when I don't think I'll be using it?

And one last question - for those who have the DDS3, does your idle go up when you turn off the unit? Mine jumps to about 12-1300 RPM when I disengage it.

 

does it stay at 1200rpm? or does it jump up then come back down?

 

No, it stays at the faster idle when the WI is off.

 

+1


who installed it?

 

This is unusual. is the +ve supply to the FIA2/DDS3 tapped to the ECU?

 

My idle does not change with unit on or off.

 

yes the V+ is coming off the ECU supply. hes bringing the car by for fluid change tonight and i'll take a peek at it then.