redfishtd

If coolant changed it may have air in system if you didn't burp the hoses . You squeeze them until you get the air out . No more than a 50 percent antifreeze
mixture . It needs the water to transfer properly .

F150Torqued

Hey @Summers22 don't go waste lots of time looking for it. LOL


Directly from the library of TOO MUCH worthless information ! LOL
Your Gryphon is reading OBDII PID # 0105. That is the PID (port #) of the TCM (Temperature Control Module). That temp is calculated for presentation on the instrument cluster. PCM obtains it from the voltage signal of the CHT Sensor - and "normalizes it" to Degrees and posts it on OBDII PID# 1624. I say "normalized" because the RAW voltage output coming directly from the CHT (PID# 1685) is -sorta' all over the place-. On each drive cycle, the PCM runs a calibration routine on the CHT, so its voltage reading makes NO SENSE to humans until calibration is completed. PLUS after that, the Cylinder Head Temperature varies from THAT normalized reading dramatically (as much as +-10 degrees) with engine load, accelerator position, RPM, Variable Cam retard and god only knows what else.


If interested, and you can input custom PIDs into your Gryphon or if the Torque guys are interested, you can watch those OBDII signals directly at the following ports and convert them to Degrees "F" with these formulas.


ECT Engine Coolant Temperature
PID # 0105, Response 1 byte, Formula = A-40 OBD header = TCM


CHT Cylinder Head Temperature normalized
PID # 1624, Response 2 bytes, formula = ((A*256)+B)*1.999


CHTabs Cylinder Head Temperature Absolute
PID # 1685, Response 2 bytes, formula = (65535-((A*256)+B))/93.3