Dash Logic
Race Director
Joined: May 2004
Posts: 16,667
Likes: 1,209
From: Raleigh, NC
St. Jude Donor '15
set to 1 decimal place when you set up the PID
That is assuming you're using a MAP sensor on the car that is capable of reading boost
If you're trying to setup a separate sensor that connects directly to dash logic, then that is something else entirely
Credit to Streetk14 for the formula
Thread Starter
Instructor
Joined: Jan 2011
Posts: 141
Likes: 20
From: Avon Lake O.H.
((pid(8) - pid(24)) * .14503773773020923)
set to 1 decimal place when you set up the PID
That is assuming you're using a MAP sensor on the car that is capable of reading boost
If you're trying to setup a separate sensor that connects directly to dash logic, then that is something else entirely
Credit to Streetk14 for the formula
set to 1 decimal place when you set up the PID
That is assuming you're using a MAP sensor on the car that is capable of reading boost
If you're trying to setup a separate sensor that connects directly to dash logic, then that is something else entirely
Credit to Streetk14 for the formula
I tried to use (pid(30001) ) with 1 decimal place and it seems to work fine.
Matches the one you gave me.
I also set the IAT alarm to 140 ° but it might be too low.
Last edited by Ancient Warrior; Apr 27, 2015 at 05:48 PM. Reason: add info
Race Director
Joined: May 2004
Posts: 16,667
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From: Raleigh, NC
St. Jude Donor '15
Le Mans Master
Joined: Mar 2013
Posts: 7,382
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From: Ahead of You :)
St. Jude Donor '14
so I have a 3 bar MAP sensor installed that reads boost to no decimal place (e.g. 8psi, 9psi, etc.). If I use this formula I'll get it to one decimal place (e.g. 8.4psi, 9.2psi, etc.)??? I'l have to try this later.
Since this is a new DashLogic thread, does anyone have any other cool tips/hints for formulas to throw into it for readings?
I tried getting the fuel economy to adjust to no success. It reads abnormally great fuel economy because the stock ECU has no clue the car is running larger injectors. I tried doing something like (0.75 X (whatever PID is fuel economy)) but that didn't do anything.
Since this is a new DashLogic thread, does anyone have any other cool tips/hints for formulas to throw into it for readings?
I tried getting the fuel economy to adjust to no success. It reads abnormally great fuel economy because the stock ECU has no clue the car is running larger injectors. I tried doing something like (0.75 X (whatever PID is fuel economy)) but that didn't do anything.
Thread Starter
Instructor
Joined: Jan 2011
Posts: 141
Likes: 20
From: Avon Lake O.H.
so I have a 3 bar MAP sensor installed that reads boost to no decimal place (e.g. 8psi, 9psi, etc.). If I use this formula I'll get it to one decimal place (e.g. 8.4psi, 9.2psi, etc.)??? I'l have to try this later.
Since this is a new DashLogic thread, does anyone have any other cool tips/hints for formulas to throw into it for readings?
I tried getting the fuel economy to adjust to no success. It reads abnormally great fuel economy because the stock ECU has no clue the car is running larger injectors. I tried doing something like (0.75 X (whatever PID is fuel economy)) but that didn't do anything.
Since this is a new DashLogic thread, does anyone have any other cool tips/hints for formulas to throw into it for readings?
I tried getting the fuel economy to adjust to no success. It reads abnormally great fuel economy because the stock ECU has no clue the car is running larger injectors. I tried doing something like (0.75 X (whatever PID is fuel economy)) but that didn't do anything.
The expression for .75 times your fuel economy should look something like this: (pid(1506)*.75) I think.
Race Director
Joined: May 2004
Posts: 16,667
Likes: 1,209
From: Raleigh, NC
St. Jude Donor '15
so I have a 3 bar MAP sensor installed that reads boost to no decimal place (e.g. 8psi, 9psi, etc.). If I use this formula I'll get it to one decimal place (e.g. 8.4psi, 9.2psi, etc.)??? I'l have to try this later.
Since this is a new DashLogic thread, does anyone have any other cool tips/hints for formulas to throw into it for readings?
I tried getting the fuel economy to adjust to no success. It reads abnormally great fuel economy because the stock ECU has no clue the car is running larger injectors. I tried doing something like (0.75 X (whatever PID is fuel economy)) but that didn't do anything.
Since this is a new DashLogic thread, does anyone have any other cool tips/hints for formulas to throw into it for readings?
I tried getting the fuel economy to adjust to no success. It reads abnormally great fuel economy because the stock ECU has no clue the car is running larger injectors. I tried doing something like (0.75 X (whatever PID is fuel economy)) but that didn't do anything.
You should be able to get the fuel economy pretty close by setting up a custom PID or whatever they call it and multiplying their reported MPG PID by whatever factor you come up with that will make it match reality. I'd just figure out how far the factory long term MPG is off vs. what you actually get out of a tank and use that as a correct factor of sorts.
I also set ones up for fuel trims.. so there's a total fuel trim for bank 1 (long and short), then a total for bank 2 (long and short). I'll get you the formulas later but you can look through the PID list and figure them out pretty easy
Then I've got one that compares commanded lambda (or AFR) to actual and shows the error. Right now it's based on 1.00 being dead on.. higher and it's running lean, lower is running richer. You could change it to % or something though if that's easier to read
So, yeah, that's what I've done with mine so far.
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Race Director
Joined: May 2004
Posts: 16,667
Likes: 1,209
From: Raleigh, NC
St. Jude Donor '15
Racer
Joined: Nov 2007
Posts: 466
Likes: 7
From: Hickory NC
St. Jude Donor '09
Yes, set for F. I unplugged the unit several times while driving to see if it was some kind of timing issue but it always shows the difference. I sent an email to Palmer and will report what they tell me.
Race Director
Joined: May 2004
Posts: 16,667
Likes: 1,209
From: Raleigh, NC
St. Jude Donor '15
That's strange. Hopefully they respond. You might try checking to see if there is a firmware update or anything like that that you could install
Racer
Joined: Nov 2007
Posts: 466
Likes: 7
From: Hickory NC
St. Jude Donor '09
Here's the very quick response:
The numbers we get are straight from the OBD-II port, we do not know why, but we have seen they don't always match the cluster on the Z51/Z06/ZR1/ and GS cars. You will see at certain points they will, but the farther they get from that, the more off they are. We know that those cars have a physical oil temp sensor, where the other cars use an estimated oil temp PID. The only thing on the OBD-II port is the estimated oil PID, so the base cars see exactly what we see, but the performance models get to see just how far off the estimated temps can be. You can try this firmware, it will allow you to put a page as blank so you can let the factory value show through on that page.
Team Owner
Joined: Nov 2007
Posts: 24,035
Likes: 2,341
From: Gilbert AZ
Others reported that with all OBD2 scanners/gauges. The DIC reads different than what is being put out. People think the car is doing some mumbo jumbo to the DIC display.
Dash logic just presenting the same data HP tuners or any other logger would show.
Dash logic just presenting the same data HP tuners or any other logger would show.
Le Mans Master
Joined: Mar 2013
Posts: 7,382
Likes: 137
From: Ahead of You :)
St. Jude Donor '14
haha so the base model is good for something yay!!! 
Anyways thanks for the help. I "think" the formula worked. We'll see I'm in the middle of a tank and don't want to reset it just yet (for fuel economy). I set it to 75% of what it normally reads for a start.
Also, thanks for the precision value changes now my boost pressure reads in 3.7psi instead of 4psi. I like it being more accurate.
Anyways thanks for the help. I "think" the formula worked. We'll see I'm in the middle of a tank and don't want to reset it just yet (for fuel economy). I set it to 75% of what it normally reads for a start.
Also, thanks for the precision value changes now my boost pressure reads in 3.7psi instead of 4psi. I like it being more accurate.
Race Director
Joined: May 2004
Posts: 16,667
Likes: 1,209
From: Raleigh, NC
St. Jude Donor '15
haha so the base model is good for something yay!!!
Anyways thanks for the help. I "think" the formula worked. We'll see I'm in the middle of a tank and don't want to reset it just yet (for fuel economy). I set it to 75% of what it normally reads for a start.
Also, thanks for the precision value changes now my boost pressure reads in 3.7psi instead of 4psi. I like it being more accurate.
Anyways thanks for the help. I "think" the formula worked. We'll see I'm in the middle of a tank and don't want to reset it just yet (for fuel economy). I set it to 75% of what it normally reads for a start.
Also, thanks for the precision value changes now my boost pressure reads in 3.7psi instead of 4psi. I like it being more accurate.
I like the 1 decimal version better too
Safety Car
Joined: Nov 2005
Posts: 4,364
Likes: 930
From: Huntsville Alabama
VERY sorry to bump at old thread..... please don't flame me....
I understand the (pid(30001) part but what exactly does the thing need to show to make it read boost with a tenth? is it just the space and the extra ) For example " Boost/Vac: (pid(30001) )" vs how it currently is " Boost/Vac: (pid(30001)"
or where do I put the . at in the formula?
I know how to get tot he formulat and edit it in the software.
EDIT I found info off another place... I think what I need is " {Boost/Vac: pid(30001:4.1) psi " this should have my lable, "Boost/Vac", and the " :4 " after the pid will pad the boost reading so when it moves form 2.2 psi (3 characters total) to 12.4 Psi (4 characters total) the text does not shift on the screen, and the " .1 " will show the reading in tenths.
I understand the (pid(30001) part but what exactly does the thing need to show to make it read boost with a tenth? is it just the space and the extra ) For example " Boost/Vac: (pid(30001) )" vs how it currently is " Boost/Vac: (pid(30001)"
or where do I put the . at in the formula?
I know how to get tot he formulat and edit it in the software.
EDIT I found info off another place... I think what I need is " {Boost/Vac: pid(30001:4.1) psi " this should have my lable, "Boost/Vac", and the " :4 " after the pid will pad the boost reading so when it moves form 2.2 psi (3 characters total) to 12.4 Psi (4 characters total) the text does not shift on the screen, and the " .1 " will show the reading in tenths.
Last edited by mittens; Oct 12, 2018 at 12:36 PM.
Race Director
Joined: May 2004
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From: Raleigh, NC
St. Jude Donor '15
I just did a new PID, custom PID, whatever they call it, referenced the included PID for boost and change the decimals to 1 for the custom one. But, your way sounds better if it stops the text from moving around.. mine moves when it goes from 3 to 4 digits
Safety Car
Joined: Nov 2005
Posts: 4,364
Likes: 930
From: Huntsville Alabama
So that way worked awesome. Then I made one change. Pad for 5 spaces.
“ Boost/Vac: pid(30001: 5.1) “
4 spaces was not counting the - vacuum so you need 5 for the negative sign, double digits. The decimal and the tenth.
“ Boost/Vac: pid(30001: 5.1) “
4 spaces was not counting the - vacuum so you need 5 for the negative sign, double digits. The decimal and the tenth.