Dynamic Air Temp PID shows up as invalid

[Bill00Form]

I'm still setting up my "new tuning technique" by weatherman and one of the PIDs listed is Dynamic Air Temp. I selected it but it is showing up as an invalid PID. I have a 2000 pontiac formula w/ a 2000 computer. What do I need to do? thanks

[Taz]

Hello Bill,

Some PIDs will display as being invalid (red X) until you connect the Scan Tool to your PCM, followed by validating (Info>Validate PIDs) the PIDs.


Regards,
Taz

[Bill00Form]

Yeah I tried that and it didn't seem to work.

[joecar]

Bill, what is your OS id number...?

[Bill00Form]

Where do I find that? the OS number

[joecar]

From the tunetool read the tune from the PCM (and save it to a file on your laptop); the tunetool will then display the OS id.

[Bill00Form]

I openned my last tune and under calibration it says

OS 09381344
OS ID AG
Calibration 9385781

Is this it or do I need to copy a new file? Thanks

[joecar]

The pid GM.DYNAIRTMP_DMA is defined for these LS1 OS's:

12202088 92111922 12208322 12225074 12212156 12221588 12216125 12577216 12579405 12580055 12585318 12593058 12509967 12587604
12588804 12592433 12585950 12587603 12592425 12606960 12592618 12593555 12606961 12612115 12587811 12606807 12608669 12597120

[Ninety8C5]

It looks like your B4901 is identical to the 1998 Corvette (OS 19980400) so you can use the calculated pid in the attached file for the dynamic air temp pid.

[Bill00Form]

12468

Thanks, I appreciate the help. Does efi live import the text file information each time the program is started? Then once it's in efi live the text file information can be removed?

Is this what I need to do? Thanks

Please use the first attachment. The second one is not correct.

[Bill00Form]

Also, in the original PID text file for the "new twist on tuning" I change gm.dynairtmp for calc.dynairtmpo and that should work? Thanks

[Ninety8C5]

Thanks, I appreciate the help. Does efi live import the text file information each time the program is started? Then once it's in efi live the text file information can be removed?

Thanks,

Bill

The information must remain in the text file, as it is accessed each time the program is started.

And yes change GM.DYNAIRTMP to CALC.DYNAIRTMP in your PID selection.

[Bill00Form]

I edited my previous by mistake. I attached the PID file. Is that what I'm suppose to do.

Thanks

[Ninety8C5]

You left the calculation out of the file. I corrected the file and this should work.

[Bill00Form]

Thanks a bunch!

[Bill00Form]

ok, I saved your PID file on mine and the dynamic air temp and calculated VE, not corrected have a big Xs through them. I rebooted and then tried to validate then when connected to my car and had no luck. Also, the calculated VE, ben corrected doesn't seem to be doing anything when the car is running. Any ideas as to how to fix this. Thanks

[Ninety8C5]

Right click on the PID and when the window opens click on 'More Info'. It should tell you why the PID is not valid.

[Bill00Form]

Says % = {SAE.MAF.gps}*({CALC.DYNAIRTMP_DMA.C}+273.15)/{SAE.RPM}/{SAE.MAP.kPa}*3445.2/displacement is not valid because: unknown parameter {CALC.DYNAIRTMP_DMA.C}, at position 38. Says the same thing for the VE value calculation. I couldn't get any information on the dynamic air temp.

[Ninety8C5]

I just checked the calc_pids.txt file and you had 'CALC.DYNAIRTMP_DMA.C'. I put the description in for 'CALC.DYNAIRTMP'. I changed the calc_pids.txt file to my description because the first one has too many letters for BBL in V2. try the new file. It should be okay now.

[Bill00Form]

Tried it again and it seems to be working. I just had to change my pid selection to another dynamic air temp selection. I really appreciate your help.

If you look at this thread again can you help me with this. It has to do with the selben factor map. I was just idling and reving it to aroud 2,000 rpm but values were being added to the 3,500 through 4,500 cells in the selben map. Do you know what may be causing this. Also, I though the MAF was adjusted primarily for WOT. Thanks

[joecar]

Bill, post some screenshots and your tun/log files.


Also note that when you apply the transient filter some data will be ignored.

MAF comes into play during WOT and during steady state PT.

[Bill00Form]

Would you also confirm that I need to complete these steps prior to logging for the "new twist on tuning."

1. B0701: Disable Catalytic Converter Protection
Insures accurate stoich and PE mode/WOT Fueling

2. B0120: Change RPM Threshold for Airflow Calculation from 4000 to 400
Eliminates any Airflow Correction from the VE Table

3. B3308: Disable DFCO: Change B3308 (M6) to 140C Change B3313 to 140C
Accurate fueling computations

4. B4105: O2 Switch-points to 450 Millivolts
Smoother MAF & VE Table

5. B3618: PE Modifier Based on Rpm (EQ): 1.16
Safe adequate Fueling regardless of Fuel Type

6. B3616: PE Enable: make sure PE enables as load becomes significant
(e.g. below 60% TP below 3200 rpm, 35% TP above 3200 rpm).

7. B3608 and B3609: PE Delay: set these to zeros.

Thanks, Bill

[joecar]

#1: is already be included in the commanded AFR/EQR, so you can leave this enabled (it protects your catalytic converter from overheating).

#3: is already included in the commanded AFR/EQR, but it makes tuning a little easier if it's disabled.

#4: it's not necessary, but you can do this if you want, it may make make tuning a little easier.

#2: yes, doing this disables the VE table so you running purely from MAF.

#5, #6, #7: yes doing those are a good idea in general, they make sure PE fueling enables immediately and is safe.

[Bill00Form]

Thank you for all the help.