so i just get rid of the iac and forget about it? set the idle manual? or whatever?Quote:
Originally Posted by DrGonzo
Printable View
so i just get rid of the iac and forget about it? set the idle manual? or whatever?Quote:
Originally Posted by DrGonzo
Yep, if you dont have an idle motor in your current TB, then it's just wiring, so just chop the wiring off or tie it somewhere and be done. unless you want to KEEP the ISC, but have it remotely located, and still working, just not attached to the TB. Idle should be set manually from the throttle body itself, are you running an aftermarket ECU or just the stock one? be interesting to see how it idles with the stock ECU!Quote:
Originally Posted by keo92stealth
I dont have the IAC or FIAV and mine idles fine.
Seriously? idles like stock or idles acceptably? No idle surging or anything? What about when you're in neutral and the wheels are in motion?Quote:
Originally Posted by dpartinvr4
it is fine all the time. I had to adjust the dashpot a little bit, but otherwise it idles solid right where it is supposed to.Quote:
Originally Posted by AdamVR4
Be careful when you delete the IAC. It's okay to delete the FIAV but the IAC is actually pretty important. The IAC interfaces with the ECU and aids in dramatic load recovery, an example would be between gearshifts or doing a pull to 5500rpm and pulling it out of gear. If you disconnect it you'll likely have surge or stall isuues when you bring the car down from higher RPM's. I'm assuming the stock ECU has a programmed recovery time and if you disconnect the IAC you erase the recovery setpoint and 9 times out of 10 the engine will actually surge and stall unless you bump the idle way up (like 1500 RPM +) when you pull the car out of gear in high RPM. With AEM I see the hunting or stalling off throttle condition a lot where-in the gain settings are set incorrectly and the engine will drop RPMS below the programmed idle and either act like it's going to stall and slowly recover, or just flat out stall.
The IAC oscillates and has a programmed duty (that can be manually overriden and reprogrammed by flash or standalone engine management). Without having a way to increase idle or reprogram gain/duty there is no control over oscillated air metering when coming off wide open throttle high engine loads and you'll likely choke the engine out and burn up plugs.
never heard or read that before.
yea, i wanna know the same thing. i also have big cams in shit so the idle is probably gonna be set high anyway.Quote:
Originally Posted by AdamVR4
what j-fast said. IAC isn't something i would consider deleting. FIAV can be compensated for by simply increasing idle RPM.