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post #1 of 5 Old 09-01-2014, 07:11 PM Thread Starter
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Need help with engine code

Hi I have a question I have 2010 Jk sport and it keeps throwing the code P0406 saying EGR position circuit high. I keep clearing the code and once I hit a big enough bump it comes back any help how to fix it would be much appreciated
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post #2 of 5 Old 09-01-2014, 07:20 PM
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http://engine-codes.com/p0406_jeep.html

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post #3 of 5 Old 09-01-2014, 08:32 PM
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At first read it looks like a loose connection or chafed wire.

The question is, is it really hitting a big enough bump that triggers the code, or is it the passage of enough time that triggers the code?

Throwing EGR codes is almost always fixed by replacing the EGR valve.
If you look at the connector and wiring and find no looseness or chafed wires, consider replacing the valve.

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post #4 of 5 Old 09-01-2014, 08:39 PM
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Quote:
Originally Posted by ronjenx View Post
At first read it looks like a loose connection or chafed wire.

The question is, is it really hitting a big enough bump that triggers the code, or is it the passage of enough time that triggers the code?

Throwing EGR codes is almost always fixed by replacing the EGR valve.
If you look at the connector and wiring and find no looseness or chafed wires, consider replacing the valve.
I'll go along with that Ron. Could also be the bump is jarring the linear valve and the EVP sensor is picking it up.

It would be nice to hook up a scanner and do a wiggle test.

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post #5 of 5 Old 09-01-2014, 08:48 PM Thread Starter
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Quote:
Originally Posted by ronjenx View Post
At first read it looks like a loose connection or chafed wire.

The question is, is it really hitting a big enough bump that triggers the code, or is it the passage of enough time that triggers the code?

Throwing EGR codes is almost always fixed by replacing the EGR valve.
If you look at the connector and wiring and find no looseness or chafed wires, consider replacing the valve.
Quote:
Originally Posted by MoTech View Post
I'll go along with that Ron. Could also be the bump is jarring the linear valve and the EVP sensor is picking it up.

It would be nice to hook up a scanner and do a wiggle test.
Thanks for the response i will look at it in the daylight tomorrow and now that i think of it it is over time that the jeep is throwing the code. Where exactly should i start looking?
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