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P0403 - The EGR saga continues
http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=5&t=72834		 Page 1 of 1
Author:  shelbydz [ Wed Dec 12, 2012 9:24 pm ]
Post subject:  P0403 - The EGR saga continues
After a week of cleaning up my EGR system and putting the Jeep back together, I fire the thing back up tonight. It runs for 5 seconds then dies. Turn the key again, nothing. Just spins. So I plug in my trusty code reader and I see a new one, P0403. WTF. A quick web search reveals that the EGR solenoid could be bad.

I *may* have dropped it when I took it out the first time. :banghead: And I will check that I got it plugged in all the way.

Do I HAVE to replace the solenoid or can I get around this code with either a SEGR or the GDE computer? At this point I'm sick of it and will sell a kidney to just be done.

thx

:banghead:
Author:  CATCRD [ Wed Dec 12, 2012 9:44 pm ]
Post subject:  Re: P0403 - The EGR saga continues
P0403 should not be a fatal error. The engine should run, just with a CEL. I think you have knocked loose something else in the area of the EGR.
Author:  shelbydz [ Thu Dec 13, 2012 9:57 am ]
Post subject:  Re: P0403 - The EGR saga continues
Okay, I'll dig around in there and see what's going on.

Would the Jeep do this if the EGR solenoid was unplugged?
Author:  GreenDieselEngineering [ Thu Dec 13, 2012 11:59 am ]
Post subject:  Re: P0403 - The EGR saga continues
P0403 is set if the wiring is disconnected or if the signal is not plausible.
Author:  shelbydz [ Sat Jan 12, 2013 2:40 pm ]
Post subject:  Re: P0403 - The EGR saga continues
Follow up for future readers:

The P403 was indeed due to an unplugged solenoid plug. I had inadvertently jostled it loose while putting everything else back. It wasn't snapped all the way in to begin with.

The Jeep dying, I believe, was cause by an air bubble in the fuel filter. I didn't remove the filter to do the EGR clean up. Instead, I unbolted the head and lifted the whole assembly out of the way. I think some of the diesel siphoned back into the tank. So I re-primed the filter and it started right up.
Author:  Hexus [ Sat Jan 12, 2013 4:10 pm ]
Post subject:  Re: P0403 - The EGR saga continues
If you haven't replaced that fuel head already, now would be a really good time to start thinking about it anyways.
Author:  flman [ Sat Jan 12, 2013 9:24 pm ]
Post subject:  Re: P0403 - The EGR saga continues
shelbydz wrote:
Follow up for future readers:

The P403 was indeed due to an unplugged solenoid plug. I had inadvertently jostled it loose while putting everything else back. It wasn't snapped all the way in to begin with.

The Jeep dying, I believe, was cause by an air bubble in the fuel filter. I didn't remove the filter to do the EGR clean up. Instead, I unbolted the head and lifted the whole assembly out of the way. I think some of the diesel siphoned back into the tank. So I re-primed the filter and it started right up.


X2, the same thing happened to me today as well, I put the front on ramps to change the engine mounts, it started and ran fine for a minute, then it quit and would not start. Code reader did not bring up any new codes. Being a diesel, it has to be a fuel problem. Sure enough the incline drained the system back to the tank. I could not prime it either, so I put a vacuum cleaner outlet side hose into the tank and opened the bleeder for an easy purge. Told my wife not to park it facing up hill. :wink:
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