[xavierbccat]

Hello.
The TPS of my vehicle has TPS reversed. Butterfly closed=1500ohm; Butterfly opened=800ohm. I saw the forum to turn positive/negative but I can not turn the positive and negative because there are other sensors correctly connected. I Attached scheme and screenshot of the current configuration. What can I do?
The needle is moving correctly but with reverse.
Thanks for your help

[androidcho]

If it's going 0-100%, leave it that way, it'll work!
I can see from the picture that you've already reversed MIN and MAX ADC count values.

[xavierbccat]

Thanks androidcho

But how is such as, when the butterfly is closed a 100% of TPS and when is opened 0% TPS

[androidcho]

Try to swap the values in the dialog and burn to the controller.

[Koop]

What's the reason you can't swap the two wires?

[PSIG]

What's the reason you can't swap the two wires?

If his schematic is showing for you; if A177-3 and A177-4 are swapped, everything attached to A177-7 will be wrong polarity. If the two TPS sensors are divergent, then it may be possible to use the other output (A177-5 or A177-8).

David

[xavierbccat]

Thanks PSIG
B151 is idle potentiometer
B147 is TPS potentiometer

I have 4 (positive), 5 (signal TPS potentiometer), 7 (negative)
I can not swap 5 and 8

I need to change something of Speeduino or TunerStudio but I don't know what change

Thank you guys for your help
Xavier

[xavierbccat]

Hello
Has Nobody found with this problem before? What does he do?

[PSIG]

Sorry Xavier—I saw you joined #development on Slack, so I thought you saw the answer Vitor gave. In the sensors.ino file:

vitor_boss 3:51 PM:
... before the line 'currentStatus.tpsADC = ADC_FILTER(tempTPS,...'
Insert this:
if (configPage1.tpsMin > configPage1.tpsMax) { tempTPS = 255 - tempTPS; }

There you go. Most reverse or inverse TPS can be rewired as Koop was saying, but yours cannot or would be difficult. So, this code change should get you going until a more permanent change is made to the official Speeduino code.

David

[xavierbccat]

Hi. Today I tested the TPS in the vehicle with the code change and it works very well.