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EGR | THE ORIGINAL VR4 Clone™ ECU

EGR

Denis has the absolute best write up I’ve seen about the EGR. Here’s a link:

Far North Racing – Stealth – Programming EGR with the AEM EMS

Not going to get into too much detail on this as most people just eliminate this system anyway.

Note: if you feel the need to disable the code (thus disable the pin) use the switch in this section, not in periphery 0.

o1YoW

The solenoid that operates the EGR is a duty cycle based setup just like the boost controller. Likewise it has a coolant temp interpolation.

The last table is just an EGR offset to verify the valve is still functioning. If you decide to keep the EGR and run the EVOX map sensor, this table must be updated with the EVOX values:

750 84
1000 84
1250 73
1500 65
1750 60
2000 55
2500 48
3000 43
3500 23

This thread is now outdated but I’m linking it for the discussion on the EVO sensor. You do not need to perform any of the other ROM changes noted.

Discussion Here: Disassembly: Manifold Pressure Differential Sensor

This page was posted on Wednesday, April 17th, 2013 at 12:28 am by bfarnam and last modified on Friday, April 19th, 2013 at 11:36 pm by bfarnam

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