I'm chasing after the PID for the following, but having a hard time tracing them down without reverse engineering the apps.
The PCM PID list in the other thread is giving a PHP error.
I'm using an arduino, so no 'pre-programmed' pids. It is basically blank.
I already have Engine Coolant and Transmission temp working, but need the following.
Intercooler Temp - Sensor in intercooler.
MAP - Boost pressure
saeb wrote: ↑Thu Jan 28, 2021 7:11 pm
Inside air temp 22 DD04
Outside air temp 22 DD05
Ambient air temp 22 F446
Intake air temp 22 F40F
Coolant temp 22 F40F
Fuel temp 22 0522
Air charge temp 22 051C
All are from module ID 7E0 PCM
Hi Stewart, picking up on this old thread.
Do you have the PIDs for cyl_bal?
Re: PID List Px1/BT50
Posted: Wed Oct 12, 2022 7:06 am
by saeb
For a PX1 is it in Forscan as a PID?
There are some references in my other documents but the naming convention is not totally clear.
Re: PID List Px1/BT50
Posted: Wed Oct 12, 2022 1:25 pm
by hbtranger
Yes, Forscan can read CylBal but I don't what it is actually measuring.
The reference values for the px1 that I downloaded (table below) from https://www.fordserviceinfo.com/ suggest the range for CYL_BAL_1-4 is +/- 8mg.
Outputs PID KOEO Hot Idle "48 KM/H (30 MPH)" "89 KM/H (55 MPH)" "Units Measured/PID"
CYL_BAL_1-4 PID -8 TO +8(B) -8 TO +8 -8 TO +8 -8 TO +8 mg
CYL_FUELMOD _ 1-4 PID "100 to 106(B)" 99 to 101 98 to 101 100 to 104 %
What Forscan reads are values in a different range with no unit specified eg:
Name Value Description
CylBal_1 1.05852516 Cylinder 1 Contribution/Balance
CylBal_2 1.01008992 Cylinder 2 Contribution/Balance
CylBal_3 0.90421604 Cylinder 3 Contribution/Balance
etc etc for cyls 4 and 5.
Forscan doesn't seem to have access to CYL_FUELMOD _ 1-4.
I'd like to have the PIDs for my ultragauge but it is rather useless if the values in Forscan are unknown/cannot be converted to the units used in the reference values.
Re: PID List Px1/BT50
Posted: Thu Oct 13, 2022 7:32 am
by saeb
Units are Undefined / Not Used, so basically there is no more information. 1.00 would normally be your middle ground for reference.
There is no reference to CYL_FUELMOD in any shape or form.
There is provision for min/max fuel trim limits DTCs but no reference to what the min and max values are.
The information you posted and how it is explained would normal refer to running a power balance test. I did monitor a test a while back and it did not try to access any diagnostic PIDs. It was most likely monitoring live CAN ids directly so I never looked into it any further.
Power balance test in IDS KEKO, key on key off etc...