These settings should not have anything to do with the autotune of DBW. It’s just for your input that the DBW moves how you like it.
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That makes good sense then as to why the TB was happy for the auto calibration.
I’m not sure what “Main valid voltage min and max” are. I don’t have the software currently here to see what help states. But as i have it in my mind your "voltage for 0% and 100% should be the 0.5V and 2.5V.
I advise you strongly to connect the PPS check signal properly as well though!
connect your current PPS signal to some analog input and the missing signal of Pedal to the TPS voltage. then everything should be as my Guide shows.
Yea that’s where I was confused as well. I assume the max min is total range but I’m not sure how that differs unless it could vary with the engine off etc.
I will try and just re pin the pedal harness and see just not sure why this won’t translate the same as v2 where I have no problems.
can you tell me please again what your current problem is?
And pls take another screenshot of all the settings of DBW and so on with 0% and 100% pressed.
So I just moved the tps 0-100% to .45 and 2.25v as it was in v2 and it seems this is giving me full throttle control again now.
I’m still not exactly sure how to set the min max for this signal but I just did .45 and 2.25 and it seems to be working.
I think for safety sake I will wire it to the sig 2 which should be .5-5v and use this half as the check. We will see how it does
Autotune set min and max for TPS sensor.
The check function is in % not in V. It compares TPS % to CHECK %. So define your check table 0.5V is 0% and 5V is 100%.
However, you connected everything backward. For the best TPS precision you need the biggest voltage range. The ADC is 10 bits it means that it divides the 5V by 1024. So fro, 0.5 to 4.5V you get a resolution around0.1xx%, but for 0.5 to 2.5V you get about 0.25%
That makes sense, so as mentioned I should change the pps signal to the greater voltage to have more resolution,
Do I need to have 2 checks in order for either to work? If that’s the case I’ll just grab the dead lead from the pedal and run a new analog for it and use it for the tps signal, and use my current short range for the check. This makes sense
However with auto tune it set the min max incorrectly for the pps so I see the issue is the same due to the limited range
Autoutne sets values only for TPS as it can only controls throttle motor.
Check voltage is important from safety side so I recommend to use it.
That makes sense. So when I say tps I am referring to signal at b18 not actual throttle tps.
B18 is tps which is my pps.
I will run a new lead to an analog and use from the pedal which should be the greater range, and use the half voltage as the check.
Hopefully this causes less issues.
As of right now with our driving the car, it seems I have normal throttle control with the limited range from pps. But I will switch it regardless
I am unfortunately not at the car, but I had been getting a DBW error, and then when it would try to calibrate it kept telling me the TPS signal (analog 5) had a short.
I think this is because I messed up the range. I had the TB tps signal set to 2.25v max. Which should have been the pps.
I then set both tps and pps to .5-4.5v the TB dbw calibrated fine. But then I had very weird throttle control, I believe this was because the actual PPS range (tps signal b18 from pedal signal 1) is .4-2.25v)
Now I’ve set the PPS to 2.25v and it’s acting appropriately,
However as @Jadzwin_ECUMASTER said, the ecu prefers to have better resolution and is built for a .5-4.5v signal for PPS.
So I need to take signal 2, from my pedal and wire that to the main PPS so it has full range to 4.5v and then use the current PPS signal which is half, just as a check.
I think this is sorted as of now.
But will test and confirm tomorrow
Hey guys. Just an update. Few hiccups,
But wired the pps to the .5 -5v signal and it’s working fine,
Calibrated the throttle with appropriate check signal and it’s working great. No issues so far. Will drive it and see.
Thanks for all the help with this
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