P1405 Diagnostic Trouble Code Discussion for November 2004
DPFE Sensor Upstream Hose Off or Plugged
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| Help Request | Posted | |
| 1994 Buick Century Custom 3.1L MIL Lamp on VIN: RRR6425548 P1405: 3 egr solinoid malfunction. Codes will set after driving a while and pcm will see solinoids fail. Pcm will set codes for the #3 solinoid first, then set code for #2 solinoid next. I can ground out each solinoid and cause egr to work and notice a drop in rpm with each one. I can test driv... |
November 10, 2004 |
