[kylethomas]

It sounds like you are on the right track to diagnosing the issue. The easiest and most effictive way might be to buy the diagnostic tool that you need to test it. If you end up fixing the problem then the computer paid for itself with the first use vs taking it to a mechanic and them charging who knows how much.

Yeah the diagnostic tool is like $300+ on ebay, I guess I could always resell it if I decide too. I am hoping someone went through a similar experience and had found an answer to it. I'll wait and see before I buy the tool.

 

[kylethomas]

for clarity, did you replace the driver side sec air valve, or just the solenoid on the valve? you replaced the entire valve assembly with the barometric pressure sensor, correct?

it's the valve that gets rusted shut due to compressed air with humidity in the lines, not the solenoid on the valve that gets rusted.

Hey Thanks for the response! I replaced the Passenger side Secondary Air Valve with a brand new one (the complete valve not just the solenoid). For my year and model the code for P2441 RH reference the passenger side valve. This valve does not have the barometric pressure sensor.

I bench tested the new valve before i installed it as well. Operated just as expected.

I also bench tested the old valve once i removed it from the car and that one operated normal as well. So I know my problem lies outside of the valve itself, i just cant figure out where. I've traced down every hot / ground wire in that circuit and it all works. The only one i have yet to test is from the relay to the ECU.

 

[kylethomas]

LH / RH is from driver's seat so passenger is RH, driver's is LH

i know your cobb screen says RH... but...

if you follow the thick line from Relay 1 it goes to driver's side.
if you follow the non ground line from the passengers side valve RH it goes to Relay 2

could the cobb screen have it backwards?

The WRX and the STI are different. The STI is shown with the Valve without the Barometric. (see diagram below) Where Relay 2 feeds RH Valve.

 

[kylethomas]

Why did you post the instructions for the LH side when your problem is RH side ?
View attachment 69039

View attachment 69040
View attachment 69041

View attachment 69042


P2441 is in fact on the passenger side (Bank 1)
The right hand side is the one without the Baro. The left hand side has a baro

Have you tried the correct procedure or where you following the LH instructions ?

I didn't even notice i posted the incorrect procedure. I do in fact have the correct RH procedure printed out and it is what I have been troubleshooting from. I must have screenshot the incorrect section of the manual for this post.

Thanks for reposting the correct procedure. I've completed everything except step number 18 in that procedure checking for a short in the harness from the relay to the ECM. I was also unable to complete Step 3 due to not having the diagnostic tool

 

[kylethomas]

Well, I've now checked the wiring from the Relay pin 9 to the ECU and there is no short circuit there either. I am running out of ideas here on why there is a CEL for this at all... Any help is appreciated

 

[kylethomas]

@citosti Hey Unfortunately I was not able to resolve it with part replacements. I had some custom maps that I used to work around this CEL.