Just can't shake this code - Engine ODB2 Fault Codes


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Just can't shake this code

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Auto Repair Home>> Automotive Repair>> Engine ODB2 Fault Codes

Blacktop6ix
New User

Feb 18, 2016, 5:45 PM

Post #1 of 5 (25001 views)

Just can't shake this code	Sign In

Code P0401 EGR insufficient flow detected..
2004 Chrysler Pacifica 3.5L

I just replaced the EGR vavle and i am still getting this code after about 10 miles of driving after resetting the code... Any ideas where to go from here??

Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Feb 18, 2016, 6:17 PM

Post #2 of 5 (24982 views)

Re: Just can't shake this code	Sign In

The code means low flow of the EGR system. Try activating the EGR at idle and see if the engine chokes out. If not, see if the passage is plugged up.

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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.

Blacktop6ix
New User

Feb 18, 2016, 7:09 PM

Post #3 of 5 (24977 views)

Re: Just can't shake this code	Sign In

how exactly do i go about doing that? thanks

kev2
Veteran
kev2 profile image

Feb 19, 2016, 11:49 AM

Post #4 of 5 (24940 views)

Re: Just can't shake this code	Sign In

First look at freeze frame then with your scanner activate the EGR - the eng should run rough or stall, yes no?

Discretesignals
Ultimate Carjunky / Moderator
Discretesignals profile image

Feb 19, 2016, 1:49 PM

Post #5 of 5 (24928 views)

Re: Just can't shake this code	Sign In

The EGR valve solenoid is power side switched. You can power the valve on the dark blue/violet wire with the engine idling. That should open the valve and cause the engine to run rough or stall.

Just a tip:

Our shop has been having a lot of problems with the aftermarket EGR valves for Chryslers. EGR valves and O2 sensors are things that should be bought from the dealer, so you don't run into problems.

Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.

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