Help us help you. By posting the year, make, model and engine near the beginning of your help request, followed by the symptoms (no start, high idle, misfire etc.) Along with any prevalent Diagnostic Trouble Codes, aka DTCs, other forum members will be able to help you get to a solution more quickly and easily!
I recently bought a Ford F 250 2005 with 4.6 engine.
The problem is that a check engine light came on. I Scanned de truck
• And came width code P0405 Sensor circuit low. I was able to track it to the DPFE sensor. Put a new one and everything seems to be ok, but a couple days after it came with a new code P0401 insufficient flow detected. I went on to take out the throttle buddy and unclogs the EGR passages they were in very bad shape. Now 2 weeks later I have a new code P0409 Faulty EGR volume control solenoid valve. Went on and changed the EGR solenoid, but this time nothing happens light stay on. I check the wiring with a multimeter for EGR components everything looks ok. So, what’s I’m missing here? Also check vacuum lines ok
• Help please
Rodrick, I have a couple questions for ya. Are you sure you have an '05 F-250 with the 4.6L? Because I can't find that engine as an option for an F-250. What's the first 10 digits of the VIN?
Second, are you sure the code you're battling now is P0409? :huh: Did you mean P1409?
Do you have the ability to run a KOEO Self-Test? Or, does you scanner have bidirectional capability?
