Here is a run down of some of the transient throttle settings which may help you to choose suitable values:

-Firstly, we usually don't use the MAP-based transient enrichment settings (ie. leave them at zero).
-Typically, the TPS component varies alot between different cars, a suitable value could be as low as 20 or as high as the maximum. Try 50 to start with (this value gets multiplied by the rate-of-change of TPS).
-The duration tends to be in the range from 200 to 600 (the enrichment will ramp down to zero over this duration).
-The 'cutoff (%)' should usually be somewhere between 10 and 20 (this parameter specifies the %TPS above which there will be no transient throttle action by the ECU). The cutoff above the 'set async' button is for transient throttle enrichment, and the one below the 'set async' button is for the asynchronous accelerator pump. They are often set to the same value.
-The gain should be somewhere between 1 and 30, where higher values require faster throttle movement to achieve the full async squirt duration specified in the 'set asynch' table.
-Finally, for the values in the 'set asynch' table, the value at 0 RPM should be zero, and the remaining values should taper down from about 200 at 500RPM to 0 at about 8000RPM. Note that the values in that table are actually x10 (to improve accuracy), so a value of 200 = 20ms of fuel. The values I just suggested are strictly a guide, they may need to be played with a fair bit.

See how you go with that. The most important settings to play with in the transient throttle are the gain, the TPS component, and the 'set asynch' table.

Cheers
Rob

There is no formula to it, so you just have to trial and error it.

One thing you will need to make sure of, is that the fuel and map is set up and pretty close to perfect.


1) 0 all values
2) Have the motor at idle and crack open the throttle as fast as you can
3) The motor will hesitate then rev
4) Return the motor to idle
5) At 0rpm, 500rpm and 1000rpm add 5 to the "asynchronous pump
6) Continue to do this until the motor becomes more responcive
7) Note at which value the motor begins to stop hesitating
Cool Continue to increase the values at 0-1500rpm by 5 until the motor begins to hesitate again.
9) Note this value and then pick somewhere in the middle of the earlier value and fine tune around it.
10) use the same process for every 500rpm after 1500 by holding the throttle at say 2000rpm and cracking the throttle.


You will find that past about 3500 you will need very little, if any, throttle pump enrich, but you will have to just find out.

The TPS component, map component and duration settings on the Corrections page set the amount of TPS change needed to trigger the enrich, and the MS is how long it enriches for. You will have to ask andy if thats exactly right though, but thats how I have tuned the adaptronics I have installed and they seem beautiful.

Dave was telling me that he thought it needed a MAP or TPS cutoff, so that beyond a certain MAP or TPS value, the enrichment was disabled.

From your description of the problem Nathan, it sounds to me as though you have correctly eliminated the stumble with the asynchronous accelerator pump, but that there's a rich or lean bit shortly afterwards. The TPS/MAP components are the amount by which the TPS or MAP rate of change is multiplied by to arrive at the enrichment value. This drops off linearly over the period specified in the duration.

Eg, if you say TPS = 10, and you open the throttle quickly, the ECU will provide a certain level of enrichment (say it's 15% for a given rate of opening the throttle). If you open the throttle twice as quickly, it will be 30%. Say your duration is set to 500 ms. This means you'll get 15% at T=0 (when the throttle is opened), then 7.5% at 250 ms after, tapering down to 0% at 500ms.

So that's how it works.