TPS ADC logging backwards

[andrew1988]

Im having an issue logging TPS ADC.

I am using ms1 extra with tunerstudio and i am tuning using alpha-n.
the y axis of my ve table ranges from 100 at closed throttle and 250 wot.

when i take a data log then open it in megalogviewer it shows idle at 250 and wot at 100 adc.
Has anybody seen this before?
i have tried both a ccw tps and a cw tps and tried wiring it around the opposite way which just makes the adc in tuner studio operate backwards and the data log still sees idle as 250 tps adc.

I am lost as to where to go from here.
any help is appreciated.

[2swe]

do you logg the TPS ADC directly from MS, or is the TPS ADC calculated by MLV ?

[andrew1988]

i didnt know there was two ways. I am using the standard logging profile that tuner studio has in it.

[whittlebeast]

In Tuner studio, does your TPS work as expected?

Andy

[2swe]

I have no idea what is "standard logging profile", but few years back when I tuned MS1extra, I used to add 2 rows to the end of msns-extra.ini

Code: Select all

entry = tpsADC,            "TPS ADC",       int,        "%d"        
entry = TargetAFR,       "AFR Target",   float,     "%.3f"    

this adds TPS ADC and AFR Target to your datalogs, very useful..

[Matt Cramer]

Check the TPS voltage - is it higher at full throttle than closed, or is the voltage backwards too?

[andrew1988]

In Tuner studio, does your TPS work as expected?

Andy

the tps in tunerstudio works as expected

I have no idea what is "standard logging profile", but few years back when I tuned MS1extra, I used to add 2 rows to the end of msns-extra.ini

Code: Select all

entry = tpsADC,            "TPS ADC",       int,        "%d"        
entry = TargetAFR,       "AFR Target",   float,     "%.3f"    

this adds TPS ADC and AFR Target to your datalogs, very useful..

i think this might be my problem. Where is it that i can add these in?

Check the TPS voltage - is it higher at full throttle than closed, or is the voltage backwards too?

Ill have to check this on the weekend when i can work on the car

[LT401Vette]

I'm guessing you are using the "TP ADC" field calculated in MLV.

Select the menu:
Calculated Fields --> Optional Fields 2 --> TP ADC

Uncheck that, then re-check it

You will be prompted for your ADC values at Maximum and Minimum.

I'm guessing you entered them backwards the 1st time as Maximum is on top.

[2swe]

i think this might be my problem. Where is it that i can add these in?

TunerStudioProjects / YOUR PROJECT / projectCfg / mainController.ini ... it's the end of the file.

[andrew1988]

thank you ill definitely give that a try.

I'm guessing you are using the "TP ADC" field calculated in MLV.

Select the menu:
Calculated Fields --> Optional Fields 2 --> TP ADC

Uncheck that, then re-check it

You will be prompted for your ADC values at Maximum and Minimum.

I'm guessing you entered them backwards the 1st time as Maximum is on top.

this was the problem. I cant believe i did that.