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Dec 21, 2014 | 02:56 PM

bizzj

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Dtc

Hey guys I got some dtc first time I hooked up the tuner and from what I read it is an exhaust circulation malfunction any ideas as to what I'm going to have to replace?

Dec 21, 2014 | 03:12 PM

mhoefer

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From: BC Canada

Give us the codes and perhaps we can help. We also need to know truck, make, model, year, mods you have done ect.

Dec 21, 2014 | 03:15 PM

bizzj

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Ok I have a 2005 f250 Harley Davidson. I have had the heads milled and the arp studs put in blue spring mod and egr delete. The codes are p0403 p0405

Dec 21, 2014 | 03:27 PM

mhoefer

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Do you have am EGR delete kit? Both codes are low EGR flow, of exhaust in the he intake. It is taking MAP, Baro, EBP and IAT2 readings and finding no exhaust flow into the intake? So, two guesses, either your EHR valve is stuck closed, or EHR deleted? If you have it, try pulling amd cleaning? If you don't, to get the code issue dealt with you need a tuner to stop the codes. If you clean the EGR and it doesn't help, may need a new EGR valve but first things first.

Dec 21, 2014 | 03:32 PM

Money-Pit

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From: SW Florida

Your EGR delete is causing those codes. Either buy an EGR valve and plug it in, then lay it on top of motor..... or buy a tuner to ignore EGR.

Dec 21, 2014 | 04:01 PM

bizzj

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Quote:

Originally Posted by Money-Pit

Your EGR delete is causing those codes. Either buy an EGR valve and plug it in, then lay it on top of motor..... or buy a tuner to ignore EGR.

I do have the egr delete my ? Is will my truck be ok or do I have to get that plug right away?

Dec 21, 2014 | 04:06 PM

Money-Pit

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From: SW Florida

The EGR valve needs to be electrically connected for proper fan operation. It can just lay in the valley.

EDIT: I didn't realize you already had a tuner, do you have the option to ignore EGR?

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Dec 21, 2014 | 04:24 PM

bizzj

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I have an sct tuner and I'm looking now to see if it does I don't think so though

Dec 21, 2014 | 04:36 PM

#10

87crewdually

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From: So. Jersey

Quote:

Originally Posted by Money-Pit

It won't hurt a thing. You'll just always have those codes, unless you do what I mentioned earlier.

EDIT: I didn't realize you already had a tuner, do you have the option to ignore EGR?

Not having the EGR plugged in doesn't allow the fan clutch to function properly.