Torque Pro PID question - Page 2 - Ford Powerstroke Diesel Forum
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post #11 of 18 Old 11-25-2016, 12:59 PM Thread Starter
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Thank you, the torque forum is a pain to search through, I don't know how you manage it.

So with no guarantee of accuracy, I wonder how I could verify its accuracy and adjust the formulas. I'll add those two and give them a try. I'm guessing the easiest way would be to set it back to a stock tune and see if they match what my stock values give me?
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post #12 of 18 Old 11-25-2016, 02:14 PM
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The ICPv appears to be pretty close. I get ~0.24v at KOEO and ~0.80v at idle with ECT at about 150°. I'll test it a bit more when I drive next time.

The pressure PID is another story, it seems a bit low to me. I think it was in the 500s and even down into the 400s at idle. So it may still need some tweaking. I found both PIDs here: https://torque-bhp.com/forums/?wpfor...opic&t=6442.00 and a reference to a thread by @bismic on FTE where he and @Lilpooh were discussing it for the Dashboss. It would be cool if one of them chimed in. If you're on stock tuning, you should get better coorelation.

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post #13 of 18 Old 11-25-2016, 04:37 PM
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Yes, you won't get good results at lower pressures with a linear equation because the ICP pressure-to-voltage curve it not terribly linear down there.

The PCM can handle it because it is put in the form of a map - like everything in a PCM.

You could piecewise-linearize it for Torque by breaking the curve into two regions. ...but you'll still have deviations - particularly at the intersection.
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post #14 of 18 Old 11-25-2016, 09:09 PM
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I am playing around with torque pro pids and also have noticed problems. Not all formulas work all the time. I have both wifi and Bluetooth dongles and use ipad and android operating systems and not everything works easily. Formulas need tweaking.
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post #15 of 18 Old 11-25-2016, 09:22 PM Thread Starter
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Quote:
Originally Posted by G8orFord View Post
The ICPv appears to be pretty close. I get ~0.24v at KOEO and ~0.80v at idle with ECT at about 150°. I'll test it a bit more when I drive next time.

The pressure PID is another story, it seems a bit low to me. I think it was in the 500s and even down into the 400s at idle. So it may still need some tweaking. I found both PIDs here: https://torque-bhp.com/forums/?wpfor...opic&t=6442.00 and a reference to a thread by @bismic on FTE where he and @Lilpooh were discussing it for the Dashboss. It would be cool if one of them chimed in. If you're on stock tuning, you should get better coorelation.
Im on a PHP tune currently. At idle, the ICPv Pressure PID routinely will drop below 400psi, and I believe if that was true, wouldnt the engine cutoff? As far as Im aware, 500psi is the minimum to keep the engine running? So, it being low wouldnt surprise me. But as the other poster after you said, it isnt exactly linear.
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post #16 of 18 Old 11-26-2016, 05:35 AM
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500 psi is required to crank, not to run. Granted, I doubt you'll run long staying under 500psi,but it won't just shut off. I ran a test and changed the equation based on the info by @bismic and the numbers look quite a bit better. I haven't driven it yet, but the idle and high idle numbers seemed more reasonable. The equation is ugly and could probably be simplified, but it was late and Anheuser-Busch gave their blessing.

(38.033*(((((A*256)+B)*(72/10000))/100)^2)))+(666.07*(((A*256)+B)*(72/10000)/100))

I agree with @djmaguire , deriving the pressure from this voltage reading will only be close and it will be somewhat erratic due to minor voltage changes resulting in more drastic pressure changes, but it's more accurate than the built-in HPOP PID if you're running a tune. (At least once the equation is input properly)

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Last edited by G8orFord; 11-26-2016 at 05:43 AM.
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post #17 of 18 Old 02-13-2017, 09:56 PM Thread Starter
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Welp, I have a new phone now and lost some of my custom PIDs and cant figure out how to change the headers and formulas for the PIDs native to Torque Pro.

Anyone got the FICM and PCM sync PIDs? I for the life of me cant remember where I got those ones from. Ive found most of my other PIDs.
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post #18 of 18 Old 02-13-2017, 10:18 PM Thread Starter
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Nvm, found 'em all.
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