EGR Problem
EGR valve sticking open at idle is usually accompanied by a rough idle and/or stalling. If Code 45 is intermittent, see INTERMITTENTS in TESTS W/O CODES - GASOLINE article.
CODE 45 TERMINAL & CIRCUIT WIRING IDENTIFICATION
| Engine Application | ECM/PCM Terminal | Wire Color | ||
|---|---|---|---|---|
| "C" & "K" Series | ||||
| 5.0L A/T | ||||
| Oxygen Sensor Signal | A10 | Purple | ||
| Oxygen Sensor Ground | A12 | Tan | ||
| 5.0L M/T & 5.7L M/T | ||||
| Oxygen Sensor Signal | D7 | Purple | ||
| Oxygen Sensor Ground | D6 | Tan | ||
| "G" Series | ||||
| 5.0L A/T | ||||
| Oxygen Sensor Signal | A10 | Purple | ||
| Oxygen Sensor Ground | A12 | Tan | ||