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Old 10-04-2014, 08:45 AM   #5
Shigun
Leaky Injector
 
Join Date: Jun 2011
Location: United States
Age: 37
Posts: 118
Trader Rating: (1)
Shigun is an unknown quantity at this point
Quote:
Originally Posted by S14DB View Post
The cold air bump has only made it so I have to give it some gas when cranking but never had to touch the gas to idle. It sound more like your IACV adjustment.

What ECU are you using? Tuned?
IACV is adjusted as per the FSM to where I hover around 850RPM. The way the S14A motor works, it has a mechanism attached to the throttle body that keeps the throttle open slightly until the coolant has warmed up enough to allow the throttle to fully close.

If you look at the throttle body on the left in this picture, you can see the mechanism on the bottom left.



And a short description of the FIC from the FSM here



So, at least on the S14A, it has more of a purpose than just giving it some gas when cranking.

As for the ECU, it's stock ECU with an RS Enthalpy tune.
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