I am having IAT incorrect readings.
Currently all 4 PLX MODULES connected as follows,
have 4 plx modules connected to Hondata ecu.
1 PLX lamda module sending signal to ecu via analogue, and also sending power and signal to DM6 gauge
1 PLX water temp module sending 2 signals to ecu via digital
2 air temp modules sending 2 signals to ecu via 2 analogue signals
All 4 modules getting 12v ignition collectively
All 4 modules getting earth directly from ecu collectively
Problem as follows,
Lambda reading 100%
Water temp reading 100%
2 air temps under reading by around 50 percent. Hondata software has calibration settings to adjust it, but when using the plx preset values in the software , it is said in the software that adjusting and values means there is a ground problem.
So I've been trying to remedy the ground issue.
I am collectively grounding to E4 SG3.
Your site says to ground it there for all air temp sensors. But should I exclude other sensors from this batch?
And your help menus says the 2 black analogue wires are ground. But doesnt say its input or output grounds. Can I use it to ground at least the 2 air temps? Maybe separating my air temps from everything else will fix this?
K-Series Programmable ECU installation questions / support issues
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