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EGR DTC codes after EGR delete

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Old Mar 18, 2012, 05:29 PM
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EGR DTC codes after EGR delete

I am getting DTC codes for the EGR system even after having completed the mrfred disable, and deleted all the devices. I expected that the disable would avoid the below codes.

P0443 Evaporative Emissions Control System Purge Control Valve Circuit
P0403 Exhaust Gas Recirculation Circuit Malfunction

posted by fostytou

In the ECU:
-XXX- See Mr Fred Quote Below, might be good anyway- Change Periphery 0 (FAA) bit 11 to 1 (to disable EGR Timing advance)
-XXX- Not necessary if disabled correctly - Change Periphery 2 (FCA) bit 09 to 0 (to disable P0401 EGR Test)
-XXX- Unrelated, but a good change for anyone with problems - Change periphery 4 (FEA) bit 14 to 1 (to disable MAP vs Baro test on startup - not necessary but doesn't hurt)

Mrfred table info:
Code:
<table name="EGR System Enable/Disable" category="Emissions EGR" address="1041" type="1D" level="2" scaling="uint8"/>A value of "0" disables the EGR system and sets the EGR duty to 0% all the time. "1" enables the EGR system.

searches for P0403 pulls a lot of posts for folks that are getting this on X's or actually want to fix the code and device. I have full delete and just want to make sure the ECU doesn't look for or try to calibrate using this stuff.
Old Aug 31, 2013, 09:52 AM
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I'm having the same issue. I've search all over, but haven't found a solution yet.
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