With the UTEC how does it control the injectors below the cut in point? What I undertsand is that the utec will cut in at a certain rpm and then take control but if you run larger injectors say 510's in my case how can I reduce the pulse/duration before the utec cuts in?

Michael

 

there is a setting for injector compensation, if that doesnt work you can alter the maf voltage percentage to accomodate...

 

Ahh okay so at idle the utec works as a interceptor

 

unless you are in open threshold (in speed density) then the utec is pretty much an interceptor...

 

Is this a forced induction setup, or NA.

 

I would like to know the answer to this, also.

 

Since you are running 510 injectors, I'll assume this is an FI setup.

The stock ECU controls the engine during start-up, idle, and cruise. During these conditions injector scaling is handling by the UTEC. At a certain user configurable point (RPM/TPS/PSI), the UTEC takes over, and complete controls fuel and timing. When properly tuned, the transition is completely seamless to the driver.

 

You can tell the UTEC to scale your injectors AND/OR you can tweak the 0 load column fuel values which are basically piggyback style (add/subtract from the ecu values).
So you can specify that the injectors are 510's and the ECU is set for stock size or 380's or whatever it is flashed for. I have 550's and idle is fine. I tried scaling but just tweaking the 0 load column values (piggyback style) worked better for me.