Subaru Enthusiasts Car Club of the Sierras - View Single Post - CEL Code PO546 No results In Search Box Here

Kavid · 2008-02-09, 01:02 PM

So I got a (Solid Not Flashing) CEL last night while driving on the freeway at roughly 65mph driving normally.

I woke up and got in the car this morning to go to Autozone, started the car, and no CEL?! I still drove to Autozone hoping that the code was stored, and luckily it was. I was getting a PO546 Code which is Exhaust Gas Temperature Sensor High Input Bank 1 Sensor 1.

I searched our site for some help but came up empty in the search box. So I then went to NASOIC for some help with the search and came up with a few threads on it. Weeding out all of the BSer's and trying to suck up the genuine knowledge, I gathered that my EGT Probe sensor in the up-pipe is probably dying. What I also read is that it is much more common for this to fail in a catless up-pipe due to more exhuast flow and temp. I have a stock up-pipe in my 05 WRX so this worries me a little.

I have taken off all parts on my car besides the short ram intake and CBE due to my car being temperamental the last week and a half while driving to and from work. The intake is coming off also when I get a chance today for sure. The parts will definitely stay off until I get an AP or other engine management in the near future.

Most said that the CEL stayed on until they did something about it or reset the ECU. Even then when most people reset the ECU, the same CEL came back on without wasting much time at all. Knowing that the CEL turned of on its own without being reset on my car within 24 hours, and hasn't returned, am I over-reacting by thinking I need to replace the EGT Probe/Sensor or should I just leave it alone and wait until the CEL comes back?!

I think I am just nervous because all of this is going down right before the turbo and I'm scared of maybe killing something else or maybe sucking some stock cat or something in from the up-pipe?! I have been driving all morning with my car running as good as it ever has so I'm not sure what to do. It seems back to normal. If anyone has had this code before or can shed some light or advice on the situation it would be greatly appreciated.

Thanks in advance guys

2008-02-09, 01:02 PM	#1
Kavid EJ22 Real Name: David Join Date: Jul 2007 Location: Reno, NV Posts: 156 Car: 09 Impreza 2.5i Sedan No Turbo I Want My WRX Back!	CEL Code PO546 No results In Search Box Here So I got a (Solid Not Flashing) CEL last night while driving on the freeway at roughly 65mph driving normally. I woke up and got in the car this morning to go to Autozone, started the car, and no CEL?! I still drove to Autozone hoping that the code was stored, and luckily it was. I was getting a PO546 Code which is Exhaust Gas Temperature Sensor High Input Bank 1 Sensor 1. I searched our site for some help but came up empty in the search box. So I then went to NASOIC for some help with the search and came up with a few threads on it. Weeding out all of the BSer's and trying to suck up the genuine knowledge, I gathered that my EGT Probe sensor in the up-pipe is probably dying. What I also read is that it is much more common for this to fail in a catless up-pipe due to more exhuast flow and temp. I have a stock up-pipe in my 05 WRX so this worries me a little. I have taken off all parts on my car besides the short ram intake and CBE due to my car being temperamental the last week and a half while driving to and from work. The intake is coming off also when I get a chance today for sure. The parts will definitely stay off until I get an AP or other engine management in the near future. Most said that the CEL stayed on until they did something about it or reset the ECU. Even then when most people reset the ECU, the same CEL came back on without wasting much time at all. Knowing that the CEL turned of on its own without being reset on my car within 24 hours, and hasn't returned, am I over-reacting by thinking I need to replace the EGT Probe/Sensor or should I just leave it alone and wait until the CEL comes back?! I think I am just nervous because all of this is going down right before the turbo and I'm scared of maybe killing something else or maybe sucking some stock cat or something in from the up-pipe?! I have been driving all morning with my car running as good as it ever has so I'm not sure what to do. It seems back to normal. If anyone has had this code before or can shed some light or advice on the situation it would be greatly appreciated. Thanks in advance guys __________________ No Regrets, Live Life Last edited by sperry; 2008-02-10 at 10:22 AM. Reason: The enter key is your friend! ;)