eCtune

Hey guys, just a quick question for those who still have their IACV hooked up, whats the typical duty cycle you see when viewing ectune at idle? Typically in the negative numbers?

Mine usually floats around -20 +/-5

i have mine set a -9. Depends on the car, but that's around what it usually sets to.

If you are forced to run too high of a iacv duty cycle, you can run into cold start up problems and idle resume issues on decel. To correct this out and lower your duty cycle, you need to re adjust your throttle body. Easiest way, unplug your iacv while its running, do whatever it takes to make it idle @ aprox 750rpms. Ex, adjust the idle screw, thread in the adjusters opening up the throttle plate etc. Now when you hook your iacv back up, shut car off, and restart; your duty cycle can now be lower and you will have no idle issues. Hope this helps, Dk

dont forget to pull the backup fuse before restarting

JaredKaragen wrote:dont forget to pull the backup fuse before restarting

huh? haha

TopMountGSR wrote:

JaredKaragen wrote:dont forget to pull the backup fuse before restarting

huh? haha

7.5a fuse, underhood box. It clears the 'soft memory' in the ecu. Part of them oem procedure for setting idle. The ecu actually remembers it's last internal dc adjustment for the next time you run your motor.... Just like it remembers the cel for next restart. I normally have less than 10% duty change on my iacv... If any. Depending on how worn an ac compressor is I may have more than that for the ac dc. Anytime I tune a car with a skunk2 manifold; or huge ass throttlebody, I end up close to +25% dc... Idle issues up the yinyang! I hate those intake manifolds with a passion! I would rather tune a set of blox stage III cams... That should say something right there