S4 or S5 ECU?
#4
Top Down, Boost Up
iTrader: (7)
There are mainly minor differences, and one big negative. Nothing worth wasting lots of time and money converting the Front harness, EM harness and more to S5. Just to name a few of the larger changes:
1) Timing will be slightly more retarded since S5s used 9.0:1 CR rotors
2) Knock control is integrated, so no knock box needed
3) The ECU has more control over idle, but the variable resistor was removed
4) Electric MOP/OMP will be needed or the ECU will go into limp mode.
1) Timing will be slightly more retarded since S5s used 9.0:1 CR rotors
2) Knock control is integrated, so no knock box needed
3) The ECU has more control over idle, but the variable resistor was removed
4) Electric MOP/OMP will be needed or the ECU will go into limp mode.
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Erosangel
3rd Generation Specific (1993-2002)
5
09-18-15 04:06 PM