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Arench
Arench, Master Technician
Category: Chrysler
Satisfied Customers: 1490
Experience:  30-years experience auto and truck repair.
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2003 chrysler 300 limited error code po406 flow sensor where

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2003 chrysler 300 limited error code po406 flow sensor where is this sensor located on the car?

Greetings from Mikey at Just Answer!

 

The EGR valve is not closing fully. The sensor is part of the EGR valve itself. Replace EGR, clear the code and retest.

 

You can only buy the valve from a Chrysler dealer and its located on the back side of the right cylinder head.

 

graphic

 

 

 

 

 

Arench, Master Technician
Category: Chrysler
Satisfied Customers: 1490
Experience: 30-years experience auto and truck repair.
Arench and 4 other Chrysler Specialists are ready to help you
Customer: replied 8 years ago.
so the sensor is the egr valve it self there is no other sensor for this code?

correct. the pintle position sensor is inside the egr.

 

 

 

 

 

 

Customer: replied 8 years ago.
sorry mikey I just noticed the year is wrong it is a 2006 not 2003 is the answer still the same? again sorry
Mikey's offline, but yes, the egr sensor is still in the egr valve for 2006's.

Thank you Josh. Yes the information is correct for 2006. They never resolved the EGR issues on this engine design. Even the current model cars are having EGR problems. You can expect to replace the EGR every 2 years or so.

 

Its not really the carmakers fault, the quality of our gasoline keeps getting worse as time passes and post-combustion system problems like this are only going to increase in the future.