dgmsport Posted October 31, 2020 Report Share Posted October 31, 2020 I have a Link G4+ & AIM MXS Strada 1.2 in my 1999 GC8 WRX, the voltage that is displayed on the dash is 1-2 volts lower then that at the battery when checked with a multimeter, has anybody had this same issue and how did you fix this? Cheers Quote Link to comment Share on other sites More sharing options...
Adamw Posted October 31, 2020 Report Share Posted October 31, 2020 Assuming that is a V5/6 ecu, the ECU measures voltage between pin B134-8 (gnd) & B136-8 (12V from main relay). So for a proper comparison you will need to connect your multimeter to these pins - with the ecu still plugged in and everything powered up. Quote Link to comment Share on other sites More sharing options...
dgmsport Posted October 31, 2020 Author Report Share Posted October 31, 2020 Thanks Adam, I have just checked this and it appears that there is a voltage drop to the ecu, after some testing there is a bad earth. cheers for the pinout numbers... Quote Link to comment Share on other sites More sharing options...
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