Custom PID's...Created by Users

[cjs27410]

Attachment 4989


After changing my LC – 1 from the default selection in the table for widebands to a user defined offset formula my Air Fuel Ratio Error is no longer supported.

The function string is currently:

100*([SENS.120]-[SENS.121])/[SENS.121]


Can anyone help me out with a new function string?

[cjs27410]

I listed the user defined sensor as o2 - should have been Air Fuel Ratio.

Works now

[Super73]

Scott,

Any other ideas?

[S2H]

Scott,

Any other ideas?

well..if I had a car that I could play with it on I would have it figured out in no time...but I currently dont own anything I can use HPT on...so I'm up a creek there..

somebody with a 99-00 LS1 F-body car make me a log with
Injector Flow Rate
Injector pulse width
Dynamic Cylinder Air
Dynamic Airflow
Commanded AFR High Res
RPM
MAP
IAT
ECT
MPH

I will work on it to figure it all out

[Super73]

well..if I had a car that I could play with it on I would have it figured out in no time...but I currently dont own anything I can use HPT on...so I'm up a creek there..

somebody with a 99-00 LS1 F-body car make me a log with
Injector Flow Rate
Injector pulse width
Dynamic Cylinder Air
Dynamic Airflow
Commanded AFR High Res
RPM
MAP
IAT
ECT
MPH

I will work on it to figure it all out

Anyone willing to help out here?


Scott thanks for trying

[S2H]

Anyone willing to help out here?


Scott thanks for trying

if somebody would make me a dam log with an LS1 with thise things I mentioned above..I'll figure it out...
I just dont own a vehicle I can test with anymore

[Raptor285]

Here is a suprise for my first post ...what is a PID and where would I put it to see the results?

[Super73]

well..if I had a car that I could play with it on I would have it figured out in no time...but I currently dont own anything I can use HPT on...so I'm up a creek there..

somebody with a 99-00 LS1 F-body car make me a log with
Injector Flow Rate
Injector pulse width
Dynamic Cylinder Air
Dynamic Airflow
Commanded AFR High Res
RPM
MAP
IAT
ECT
MPH

I will work on it to figure it all out

Scott,

I got my cable back today and should be able to pull this off a buddies F-bod tonight. Talk to you soon.

[rdmelton]

Here are a couple of PIDs that I have found on this forum (I take no credit for them whether they are right or wrong):

Horsepower
([PID.2701]*[PID.12])/5252


Torque Converter Efficiency
([PID.4110]/[PID.12])*100

[S2H]

Horsepower
([PID.2701]*[PID.12])/5252

horsepower only works for an automatic transmission..and is not accurate as its calcualted from other values in the tune

[zzzybil]

IFR = Injector Flow Rate
IPW = Injector Pulse Width
Cyl = Cylinder
AFR = Air Fuel Ratio
RPM = Revolutions Pre Minute
SQRT = Square Route
IAT = Intake Air Temperature
ECT = Engine Coolant Temperature
MAP = Manifold Absolute Pressure
kPa = KiloPascals
PSI = Pounds per square inch
vac = vacuum
LTFT = Long Term Fuel Trims
STFT = Short Term Fuel Trims
LTIT = Long Term Idle Trims
STIT = Short Term Idle Trims
IMP = Imperial
MET = Metric
MPG = Miles Per Gallon
RAF = Running Air Flow

that should be all my abbreviations..LOL

i'm a noob and have trouble guessing the units - lbs , % , hz
for parameters
some basic receipes for us noobs to make / lead us - would be a help

[Super73]

Trying to save the MPG PID once the function stream is copy and pasted. It works fine, but I can't save it. I need to copy and paste it in to the program every time I want to drive it. Can someone help?

I also want to set up a Average MPG pid. So suggestions would be nice for that. Thanks in advance.

[DSteck]

Trying to save the MPG PID once the function stream is copy and pasted. It works fine, but I can't save it. I need to copy and paste it in to the program every time I want to drive it. Can someone help?

I also want to set up a Average MPG pid. So suggestions would be nice for that. Thanks in advance.

To do an average MPG reading, you'd have to use a histogram. Just make a histogram with one cell, and log the MPG PID... and view the average. You won't be able to view the average over multiple scans.