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2004 - 2008 Ford F150 General discussion on the 2004 - 2008 Ford F150 truck.

A new issue, A P0405 code!

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Old Aug 29, 2016 | 01:34 PM
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Default A new issue, A P0405 code!

I have a 2004 F-150 with a 4.6l and almost 200,000 miles.

I was recently having P0401 and 402 codes posted so I cleaned the TB and Spacer, I replaced the EGR Valve and cleaned the map sensor.
And now I'm getting a P0405 low limit code.

Any Ideas??
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Old Aug 29, 2016 | 01:36 PM
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MAF sensor.. what did you clean it with ?


Potential causes of a P0405 code include:
  • Short to ground in EGR signal or Reference circuits
  • Short to voltage in EGR ground or signal circuits
  • Bad EGR valve
  • Bad PCM wiring issues due to chafing or loose terminals

Last edited by techrep; Aug 29, 2016 at 01:40 PM.
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Old Aug 30, 2016 | 12:23 PM
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CRC MAF Sensor cleaner...


Originally Posted by techrep
MAF sensor.. what did you clean it with ?


Potential causes of a P0405 code include:
  • Short to ground in EGR signal or Reference circuits
  • Short to voltage in EGR ground or signal circuits
  • Bad EGR valve
  • Bad PCM wiring issues due to chafing or loose terminals
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Old Aug 30, 2016 | 12:39 PM
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Read power to the EGR like stated above to verify circuits
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Old Sep 7, 2016 | 01:01 PM
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Default P0405 Code

Ok, then what are the pinouts for these 6 pins on the egr connector??



Originally Posted by techrep
Read power to the EGR like stated above to verify
circuits

Last edited by Craig4937; Sep 7, 2016 at 01:08 PM.
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Old Sep 9, 2016 | 05:42 PM
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Default pinouts

Any Ideas? Or where I can find the info???

Originally Posted by Craig4937
Ok, then what are the pinouts for these 6 pins on the egr connector??
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Old Sep 14, 2016 | 03:31 PM
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Anybody??? Where can I find this information on the egr 6-pin pinouts???






[QUOTE=Craig4937;4939840]Any Ideas? Or where I can find the info???[/QU
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