Issues with intake during swap

chaulker · Post by **chaulker** » Sat Jul 18, 2009 4:12 pm

Hello,

I have a EJ22T out of a 91 SS that I am going to swap into a 2005 2.5RS. I am planning to run megasquirt so I am not concerned about the stock ECU or anything like that.

Here's my issue. I'm trying to figure out how set up my thottle and TCP/IAC. On my RS it is all drive by wire and if I'm not mistaken the TPC is actaully on the accelerator pedal and the IAC is build into the thottle body itself. Thus, I am considering using the legacy one. My question is where is the IAC on EJ22T? Whats it look like. I got some parts ina box when I picked up the engine. Also, on the intake there is a beige "thing" on it with the numbers "1 2 3" on the cap with some lines between the numbers. Can anyone identify this?

Thanks guys for all your help.

magicmike · Post by **magicmike** » Sat Jul 18, 2009 5:04 pm

The IAC valve is the big thing hanging off the passenger side of the intake manifold right at the top where the throttle body bolts up. not sure if it has the numbers 1 2 3 though.

chaulker · Post by **chaulker** » Sat Jul 18, 2009 6:41 pm

Thanks very much for that I have located it.

Is the IAC just a fast idle type or is it a stepper motor type?

chaulker · Post by **chaulker** » Sat Jul 18, 2009 10:19 pm

Upon further inspection it appears to be a PWM type of system. Can anyone confirm?

Post by **Legacy777** » Mon Jul 20, 2009 3:17 am

Yes it uses PWM duty solenoid.

chaulker · Post by **chaulker** » Mon Jul 20, 2009 12:31 pm

Legacy777 wrote:Yes it uses PWM duty solenoid.

Perfect. That's the exact information I am looking for.

Thank you.

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Issues with intake during swap

Issues with intake during swap