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Old 07-07-2018, 03:54 PM   #1
Awb17x
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Default EGR delete with EGR Plugged in?

I'm putting the car back to stock and just sold my AP3. Didn't realize id throw a code.

Can I leave the delete on and.. just plug in the EGR? The shop that did the install a year ago didn't put the stock parts back in my car so I'm going to have to buy the OEM kit off someone and this is kinda time sensitive. I just wanted to know if the code would come back after I clear it and plug just the EGR in while leaving the plates on.
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Old 07-07-2018, 05:08 PM   #2
shadrag
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It's more than just the code, car wont run right with the stock oem tune and no egr.
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Old 07-07-2018, 05:24 PM   #3
2015Sapper
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Quote:
Originally Posted by Awb17x View Post
I'm putting the car back to stock and just sold my AP3. Didn't realize id throw a code.

Can I leave the delete on and.. just plug in the EGR? The shop that did the install a year ago didn't put the stock parts back in my car so I'm going to have to buy the OEM kit off someone and this is kinda time sensitive. I just wanted to know if the code would come back after I clear it and plug just the EGR in while leaving the plates on.
You cannot just plug in the EGR, it will still throw a code if it's not effectively metering exhaust gasses into the intake, anyone who has had a clogged EGR on an OBDII vehicle could tell you that. The EGR is such a simple thing to put back into place, the most difficult part will be bleeding the cooling system after you hook the coolant lines back up.

I'd contact the shop that did your EGR delete, I guarantee they have a bunch of these things lying around.......
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Old 07-08-2018, 06:29 AM   #4
Bellipotens
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Quote:
Originally Posted by Awb17x View Post
I'm putting the car back to stock and just sold my AP3. Didn't realize id throw a code.

Can I leave the delete on and.. just plug in the EGR? The shop that did the install a year ago didn't put the stock parts back in my car so I'm going to have to buy the OEM kit off someone and this is kinda time sensitive. I just wanted to know if the code would come back after I clear it and plug just the EGR in while leaving the plates on.
Certified pre-owned...
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Old 07-08-2018, 01:26 PM   #5
engineered2win
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I would highly recommend not doing that. You will get significant knocking. There is a bunch of ignition advanced added during EGR, because combustion speed is slower. You won't be getting any inert gas, but will be adding more ignition, which will definitely knock more.
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Old 07-09-2018, 06:42 PM   #6
Awb17x
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Originally Posted by engineered2win View Post
I would highly recommend not doing that. You will get significant knocking. There is a bunch of ignition advanced added during EGR, because combustion speed is slower. You won't be getting any inert gas, but will be adding more ignition, which will definitely knock more.

Will it throw a code though? I'm literally going to tow it to the dealership and they're buying the car back.
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Old 07-09-2018, 06:42 PM   #7
Awb17x
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Originally Posted by Bellipotens View Post
Certified pre-owned...


I'm almost sure it's going to the auction since it's a lemon
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Old 07-13-2018, 11:51 AM   #8
Awb17x
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So just in case, anyone else is going to search this down the line. You can leave the deletes in and just plug the EGR back in and the check engine is gone. Now I'm not running this long-term.
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Old 07-13-2018, 12:37 PM   #9
Fatnslow
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Depends how the ECU monitors EGR. If it is a true closed-loop system, if EGR Actual does not equal EGR Desired by measuring EGR flow directly, it will eventually throw a code.

Some OEMs use the inferred calculations and leave it at that. In this case, you "may" not throw a code but you could cause knocking as mentioned previously because the ECU is expecting it to be there.
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