This is the RPM that the ECU will attempt to maintain via control of the ISC and ignition timing whenever the ECU sees a closed idle switch (or simulated idle switch), and the engine is at normal operating temperature.
When setting Target idle above 900 rpm, it's a good idea to raise the Coasting FC offset setting as well, typically setting the offset to Target idle minus 900.
This is the RPM limit that the ECU will observe when the vehicle speed seen by the ECU is at or below the speed specified by Disable launch at or above.
This is the RPM limit that the ECU will observe when none of the other RPM limits is active.
Coasting FC offset is used to raise the rpm above which fuel cut takes place when the idle switch is closed. This setting is often changed to avoid fuel cut at light throttle with Target idle values above 900 rpm.
Specifies the speed below which the Launch limit is active.
The Enable clutch cut checkbox must be checked if the clutch wire is installed, otherwise idle rpm will drop when the clutch switch is activated.
The Enable TPS adjustments checkbox must be checked to activate TPS Offset and TPS scale.
NOTE: You can let the application calculate the following adjustments for you using the TPS adjustment option available from the datalog view. Instructions on how to do this are provided on our wiki at the following URL:
http://www.ecmtuning.com/wiki/v3tpsadj
The amount to add to RawThrotPos.
The value by which to multiply RawThrotPos.
To adjust what the ECU sees, first datalog RawThrotPos. With no TPS offset or scaling applied, the RawThrotPos value is the real value datalogged from the ECU when you display TPSVolts or ThrotPos. Move the throttle from fully closed to fully open. Note the RawThrotPos at each point (fully closed and fully open) as follows.
Vc = RawThrotPos when throttle closed Vo = RawThrotPos when throttle open |
Next, solve for scale and offset as follows, using the values collected in the previous step.
Scale = 223 / (Vo - Vc) Offset = 32 / Scale - Vc |
Disabling idle switch operation by unchecking this checkbox will make the ECU believe that the throttle is open even when it's not, disabling closed-loop idle rpm control and coasting fuel cut.
Checking this checkbox will make the ECU believe that the throttle is open whenever the car is moving, disabling closed-loop idle rpm control and coasting fuel cut when the car is moving.
Checking this checkbox causes the ECU to ignore the physical idle switch and to simulate the idle switch state from throttle position. RawThrotPos values of 34 and below will result in the ECU seeing a closed idle switch while values of 35 or above will result in the ECU seeing an open idle switch.
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