Is an Idle Control Valve really needed?

[StuC]

Im running a microtech on a 3s which has a 3wire stepper and cant actually use it because the doesnt support stepper control - it is a fairly massive pain in the arse i cant get the car to run right at cold atm and need to sit there warming her up till about 40 deg. IM aiming to try and adapt a 2 wire of some sort and mount that instead. If youc an use an ISCv, do as it sucks without one.

STuC

[thechuckster]

fwiw: XF falcon and ZL fairlane have a two wire PWM-controlled valve.

some Hyundai have a replica of a large bosch 3 wire (12V, earth, PWM) and seem to have a substantial inlet/outlets and uses barbed fittings for hose.

[CrUZida]

Im running a microtech on a 3s which has a 3wire stepper and cant actually use it because the doesnt support stepper control - it is a fairly massive pain in the arse i cant get the car to run right at cold atm and need to sit there warming her up till about 40 deg. IM aiming to try and adapt a 2 wire of some sort and mount that instead. If youc an use an ISCv, do as it sucks without one.

STuC

Replace the ISCV with a 20V one. Thats a 3 wire setup that is PWM controlled. And the Microtech can control it (assuming you have 2 ignition outputs free).

[oldcorollas]

btw, if you accidentally break a modern toyota ISCV (mine was from 7KE, but the JZ ones and later 4ag should be similar?) which has the PWM stuff to rotate a barrel to let air in...
you can modify them so they are just driven by an old style choke cable setup (or a modern type with screw drive for more accuracy)

not exactly flash, but no need for ECU control.. just means a bit of fiddling with the knob or lever when you first go to start car, adn the occasional tweak after it is warm

of course ECU PWM is better...

[mikie]

would anyone be able to answer me this.
is the Gen3 3SGE idle speed control valve an on/off type or something else.
i pulled mine off to clean it out and have since then misplaced it. car now starts like poo.

any help would be great.

cheers mike

[mudgutts]

hi guys

sorry to wake a cold thread, but i'm looking to replace my setup with a plain TB and IACV.

i'm looking for the IACV inlet/outlet to be hose fittings and the body of it not to bulky. PWM preffered.

thechuckster said some Hyundai's

anyone else offer some suggestions?

i've seen this on ebay from a BMW 318i (pic below)

that's what i'm looking for, but any others?