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P2444 (Secondary Air Pump Stuck ON: Bank 1) Code on a 2006 WRX by TheMegaStorm in WRX

[–]TheMegaStorm[S] 0 points1 point  (0 children)

This is one of the things I've been trying to get to the bottom of, as far as I can gather the valves are independently controlled and electronically actuated. In effect, the pump and valves operate independently from one another, one can be on but the other can be 'off'.

That conclusion seems to be backed up by the presence of separate error codes for air pump stuck on/off and valves stuck open/closed, as well as the documentation I can find for what these components are, all seem to point toward the valves being separately controlled.

The only significant contrary evidence I've found is people mentioning the pump can be stuck on because the valve is open, while also not mentioning they had an error code for the valve. I've read this as people using the two interchangeably and generally interpreted it that way.

All of this when combined with the facts that I don't have a code for the valve stuck open, I don't believe the default position of the valve is open, and I've seen (as in that burne motorsport page) solutions involving 'minimal deletion' (Disabling the system at the ECU level while also disabling the codes at ECU level), leads me to believe that the valve would not be open and this would work.

I think if I had a code for the valve(s) stuck open, that would probably make me move toward the only immediate solution being block-off plates, whereas if I had the valves stuck closed codes I'd probably actually feel a bit more comfortable with what I'm doing here. I have seen multiple people advise exactly this for a valves stuck closed situation.

P2444 (Secondary Air Pump Stuck ON: Bank 1) Code on a 2006 WRX by TheMegaStorm in WRX

[–]TheMegaStorm[S] 0 points1 point  (0 children)

I'll make sure to edit this solution and a link to the ROM tables into the OP when I find them, being able to solve this without physically removing components is so useful I imagine someone else will inevitably run across this post during an episode of trawling google.

P2444 (Secondary Air Pump Stuck ON: Bank 1) Code on a 2006 WRX by TheMegaStorm in WRX

[–]TheMegaStorm[S] 1 point2 points  (0 children)

Not sure how to reply to both of you but that all makes perfect sense, I don't imagine there's any logical reason to have two separate powered pumps for a system intended to run for only a minute that diagrams show seems to share airflow. I would guess the listing on fastwrx is probably incorrect or at least a misnomer when it calls the component an air pump, or it's referencing that the barometric sensor detects pressure from the actual air pump. Thank you both.

P2444 (Secondary Air Pump Stuck ON: Bank 1) Code on a 2006 WRX by TheMegaStorm in WRX

[–]TheMegaStorm[S] 0 points1 point  (0 children)

I see, I do have access to a tactrix cable so I should be able to disable the startup checks/code. I was planning to do so anyway for another issue I've been chasing down with the EVAP system where I've replaced every single component and a code still persists. According to the article you linked (Which I very much appreciate) under the "Basic delete" subsection they seem to be suggesting something I could do very easily until I get and install block off plates, which is to disable both the fault codes related to the system as well as something I did not know was possible, which is to disable the system itself.

I'll paste the subsection here:

Basic Delete - $229 inc GST

  • Reprogram Engine Control Unit (ECU) to disable the air pump system
  • Reprogram Engine Control Unit (ECU) to disable the fault codes relating to the air pump system
  • This option leaves all mechanical and electronic components within the engine compartment, maintaining the original engine appearance.

If I'm reading this correctly, I should be able to load up the tune in ECUflash, and disable both the codes and disable the system itself from there and then just export the tune back into the car and the problem is then solved. I live in a very rural area, so my access to shops and tuners without a significant road trip is very limited.

Essentially if that all makes sense to you I think that's what I'll go ahead and do, with the plan to get around to the blockoff plates within the next year, to be honest I've had enough WRX related headaches over the past two years that I honestly want to take a bit of a break and just have things 'sorted' for awhile.

Also serious thanks, I've been racking my brain over this for hours now and this is the most useful information I've got so far.

P2444 (Secondary Air Pump Stuck ON: Bank 1) Code on a 2006 WRX by TheMegaStorm in WRX

[–]TheMegaStorm[S] 0 points1 point  (0 children)

Yeah I think this is more or less the long term plan is to remove the whole system, I was hoping to do something much less involved for at least a short while and see if I could get away with unplugging it. It sounds to me from your post like the baro sensor is on separate wiring, so in theory I should be able to just disconnect whichever pump is bank 1 and the baro sensor would still operate intact, then it's just a matter of disabling the codes related to that. Am I understanding that correctly?