FIG‐9 Wiring Diagram for EGT/CHT sensor must remain operative. Check for oil leaks before first flight. 6) Outside Air Temperature Probe, OAT . The OAT probe, PIN 400510, is very similar to the conventional mechanical probe: now in use in many aircraft and will fit into the same hole. Westach | Instructions Westberg Mfg., Inc. Tachometers & Gauges since 1944. Trouble shooting. 0 Related searches for egt sensor wiring diagram vdj200 egt probe location200 ss egt probe locationegt temperature sensoregt sensor descriptionhow to install egt gaugeexhaust gas temp sensor locationegt fittingegt tuning