I plan to remove the air pump and ACV and make block-off plates for those, but what else is not needed using the PFC? I will be running stock sequential twins with DP, MP, CB and CAI. Thanks in advance.

 

AWS, EGR solenoid and EGR switch if you have one

 

Here is what I have elinimated while still using the stock ECU - and what I intend to leave out when I install the PFC ecu.

ALL of the rats nest solenoids - 14 or 15 of them
AWS solenoid
Wastegate solenoid ( running Profec B spec2 )
Air pump relay


Only solenoid I will keep is the ISC solenoid.
Also I am getting rid of the OMP - going to premix.

Tom

 

You plan to stay sequential? How can you remove all those with the stock ECU and still not have CEL?

 

Thanks

 

It is possible to remove some solenoids and not get a cel. Often individuals insert resistors in place of the solenoids to prevent the error codes.

The solenoids I listed were related to the wires which are cut during the install of the PFC.
I didn't list the Split Air becuase you indicated you were removing the ACV, which has the split air attached to it. You could also eliminate the double throttle solenoid.

Look at the simplified sequential diagram to see what solenoids are needed.

 

I installed 300 ohm-5 watt resistors in every solenoid I removed. I have had them like that for 3 years now. When my PFC gets here they are all history. I have made up custom harnesses from the yellow ECU connectors out to the engine for the PFC.

Right now the only solenoid I am using is the ISC solenoid with the stock ECU. And it runs fine.

Tom