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The low cold idle is a result of how people are addressing the electronics portion of the 5MT conversion. Nearly everyone is leaving the "N" and "P" inputs on the ECU ungrounded which means that the ECU thinks the car is in drive (or reverse). As a result, the ECU will not drop into the high cold idle routine. To fix it, its necessary to ground the "N" or "P" input on the ECU. My first attempt here was to permanently ground the "N" input on the ECU. This seems to be working ok, but I'm wondering if having the ECU in "N" mode has any affect on the rev limiter. When I get some time (probably in a month), I'm going to wire the "N" input on the ECU to the clutch switch and the NSS on the tranny so that the ECU will only be in "N" when either the clutch is completely depressed or the tranny is in neutral.
When you are talking about a variable idle, what range of rpm are you seeing?
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Mychailo
:: 2006 Silver Mitsubishi Evolution 9, E85, 34 psi peak, 425wtq/505whp DJ ::
1995 Laguna Blue SVX L AWD 5MT (sold)
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SVX Mods: ND iridium spark plugs, Impreza RS fpr, afr tuned to 13.2:1 using a custom MAF bypass, custom exhaust, WRX 5MT w/ STi RA 1st-4th gear & stock WRX 5th gear, Exedy 13 lb flywheel & Sport Clutch, STi Group N tranny & engine mounts, urethane spacers in rear subframe, rear diff mounts, and pitch stopper, SVX Sport Strut Springs (185f/150r), custom 19 mm rear swaybar, urethane swaybar mounts, Rota Torque 17x8", 225/45-17 Proxes 4 tires, Axxis Deluxe Plus organic brake pads.
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