TPSAcc - what is it and what values should I have????

[neilb]

I am running MSnsS+Extra 029q with EDIS on a Toyota 4AGE with GSXR 750 ITBs.

I have got the VE table sorted but I am having trouble with AE with either MAPdot or TPSdot it stumbles before picking up. I have using megaLogViewer to see what is happening.

At a constant throttle TPSacc = 100 but when I add throttle to TP value increase but TPSacc jumps wildly to a - value then throws up a massive + value, yet when a take my foot off the throttle it stays at 100 - is this correct and what effect does it have on AE?

I don't get a very stable MAP signal at idle if flicks about from 57 - 63 ish can anyone recommend either MAPdot ot TPSdot for AE and some values to use as start points.

Thanks again

Neil

[daxtojeiro]

Hi there,
the best option is MAPdot , I had a dreadfull map since putting itb's on it so I fitted a restictor ( A fish pump air valve) turned it down till the map stabalized, now it is great and mapdot works great. Mapdot threshold settings of 30-50 are about normal, and TPS values of 0.5V/S. You could have a dirty TPS if its triggering it all the time, or a bad earth to it, as TPS should be the easiest to setup, but most people find MAP the better solution.
Phil

[neilb]

Hi there,
the best option is MAPdot , I had a dreadfull map since putting itb's on it so I fitted a restictor ( A fish pump air valve) turned it down till the map stabalized, now it is great and mapdot works great. Mapdot threshold settings of 30-50 are about normal, and TPS values of 0.5V/S. You could have a dirty TPS if its triggering it all the time, or a bad earth to it, as TPS should be the easiest to setup, but most people find MAP the better solution.
Phil

The TPS values seem OK it's the TPSacc that jumps arround and they don't seem to match eg:

If I stand on the throttle TP goes form 0 to 98 and stays there TPSacc goes from 100 to -12, -17, 187, 158.

I have attached a sample log