P1408 Diagnostic Trouble Code Discussion for May 2012
Manifold Absolute Pressure Sensor Signal Performance
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| Help Request | Posted | |
| 2003 Ford F-150 King Ranch 5.4L MIL Lamp on VIN: 1FTRW07L83 P1408: EGR low flow during KOER test. Came in for a mil light on. Code P0401 stored. Had no KOER codes. I have made sure everything is clean in the way of passages. Tried a factory DPFE and apply sol. It has 20 inches of vac. at sol. but will only apply 2 inches of vacume to egr valve during KOE... |
May 03, 2012 |
