Posts Tagged: Subaru P2138

Subaru P2138

Diagnose and fix Subaru P2138 trouble code The Subaru P2138 THROTTLE/PEDAL POSITION SENSOR/SWITCH “D”/”E” VOLTAGE CORRELATION is a fairly common trouble code. It’s most often a bad throttle/pedal position sensor. But you check for the presence of carbon buildup in the throttle body first. If you find lots of carbon, remove the throttle body and clean it. Do NOT spray throttle body cleaner directly onto the throttle plate. That can wick into the electronics and damage them. Instead, apply cleaner to a shop rag and wipe off the carbon. should … Read More