EGR DTC codes after EGR delete
#1
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.
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.
Thread
Thread Starter
Forum
Replies
Last Post
fostytou
Evo How To Requests / Questions / Tips
338
Nov 10, 2023 11:55 AM
BadazzCR
Evo Engine / Turbo / Drivetrain
3
Aug 23, 2008 07:40 AM