lefty2053 Posted December 24, 2011 Share Posted December 24, 2011 I thought I should start a new thread as the old one was listed as a 2.2 when it was if fact a 2.5 This is the car that had all these codes. P0325 P0400 P0500 P1507 P9141 In addition to these I find it also has the At Light flashing 16 times as well. I still haven't had the time to check much out. I have a few questions: 1>What is the about 1" tube just above the IAC? It has a lot of Electrical tape wrapped around it. I will replace the hose soon. 2>Are there special Vacuum lines? I checked out some lines that looked new on the device above the EGR and they slide right off and on. I would figure they are the wrong type or size and are not holding vacuum. 3>Are the Subaru security systems any good? The wires are hanging down from it and the PO told me he cut the wires to the horn on the system because he couldn't get it to shut off. I found those wire connections at the rear of the engine and in the next couple of days will unhook them and clean them with some Deoxit. I will also unhook the IAC and clean it as well. It is hard to believe all these codes and the Tranny are all having problems. The PO only had this car for 4 months and I have no idea who owned it before that. I did get it running and drove it around a couple of blocks today. It drove fairly good and I went across a big icy spot and it didn't seem to slip on the ice. The Battery is toast I will have to get another one if I want to test much out. Thanks for any help. Quote Link to comment Share on other sites More sharing options...
3Pin Posted December 24, 2011 Share Posted December 24, 2011 P0325 knock sensor P0400 EGR P0500Veh speed sensor A malfunction P1507 Manuf control veh speed idle contraol aux input P9141 ???? don't know. Use the search function in USMB on the flashing 16 times. There is tons of info on it. Go to cars 101 or search here it and it will tell you how to make the alarm system work without having to cut wires. the last guy was Kinda lame if you ask me. YOu may want list more info. We all assume you have an automatic, but it would be good to know for sure. How many miles on your car? I wouldn't replace a bunch of stuff until you get the vacuume lines hooked up with the proper size hoses Good luck! Quote Link to comment Share on other sites More sharing options...
lefty2053 Posted December 24, 2011 Author Share Posted December 24, 2011 P0325 knock sensor P0400 EGR P0500Veh speed sensor A malfunction P1507 Manuf control veh speed idle contraol aux input P9141 ???? don't know. Use the search function in USMB on the flashing 16 times. There is tons of info on it. Go to cars 101 or search here it and it will tell you how to make the alarm system work without having to cut wires. the last guy was Kinda lame if you ask me. YOu may want list more info. We all assume you have an automatic, but it would be good to know for sure. How many miles on your car? I wouldn't replace a bunch of stuff until you get the vacuume lines hooked up with the proper size hoses Good luck! Sorry I forgot to mention, I know what the codes are now and was going to work on the individual parts one at a time. Cleaning things up and Putting on new hoses is my starting point. It is an Auto, I didn't pay for the car but traded an ATV that was older but running good. Worth about $600 but I was selling it for $900 because I had put some money into it when I got it. The car is Sharp looking with nice rims and it is a GT. It has 219k miles on it. The motor starts right up when the battery is charged and idles very smooth. All windows are tinted sunroof leather seats. Drivers seat is ripped. I plan on fixing what I can and using it just as a spare if I ever need it. It will need a matching set of tires as the PO put on 2 on the front. I should be able to get 2 for the rear the same. Is that hose above the IAC where the PVC goes? Like I said it is covered with Electrical tape about 3" starting at the top of the hose down. If it looks like it will cost too much I will part the car out. Quote Link to comment Share on other sites More sharing options...
idosubaru Posted December 24, 2011 Share Posted December 24, 2011 those are all really easy and cheap fixes, some might not even need to be addressed. WOW though - that is a lot of codes, like that thing was just worked over like crazy and completely ignored and abused for a while to get all those codes or something extensive happened that caused them all at once? have the codes cleared and see which ones come back first. that's generally the best place to start with a long list like this. what you're describing sounds basically like where the PCV valve is - it's the only large threaded object that threads in just to the passengers side of the throttle body. it threads into the intake manifold and a hose connects to the other side, going to the large 3" or so intake hose i think. the knock sensors simply crack at the base if you wanted to pull it and check. cheap ones are available on ebay - bheinen, member here, sells them here for cheap too. i've heard of people trying to fill the cracks with silicone/epoxy, though i've never tried it nor would I. LOL EGR's sometimes just need cleaning the hoses and valve out. you'll probably need a new gasket if you go to remove the valve though. Quote Link to comment Share on other sites More sharing options...
lefty2053 Posted December 24, 2011 Author Share Posted December 24, 2011 Thanks for the help. I will clear the codes tomorrow and do as you said,look for which ones come back first. I will clean the IAC and EGR in a few days and the Knock sensor I did read about them cracking. After that I will change out Vacuum lines and go from there. It sounds hopeful now. Thanks again. Quote Link to comment Share on other sites More sharing options...
Caboobaroo Posted December 24, 2011 Share Posted December 24, 2011 So the P0400 code is an EGR malfunction code. All the other codes need to be addressed before the EGR check system will see that its OK. So fix everything else and the EGR system should be fine. Quote Link to comment Share on other sites More sharing options...
lefty2053 Posted December 24, 2011 Author Share Posted December 24, 2011 So the P0400 code is an EGR malfunction code. All the other codes need to be addressed before the EGR check system will see that its OK. So fix everything else and the EGR system should be fine. Plan on cleaning it anyway. Quote Link to comment Share on other sites More sharing options...
lefty2053 Posted December 25, 2011 Author Share Posted December 25, 2011 Did a little messing around today and cleared all the codes. Restarted the car 4 times and let it run. Checked the codes and all I get is Code P0141, O2 Sensor 1 Bank 2 Malfunction. I looked under the car to see if I could see the Sensors and never saw them. The car has the cats on but I didn't see a sensor nor holes for them. I also noticed the tail pipe and muffler is cut off. No Muffler and the pipe ends about 2 1/2 Feet from the tail of the car. Can the muffler being cut off be the whole problem with this code? Quote Link to comment Share on other sites More sharing options...
Fairtax4me Posted December 25, 2011 Share Posted December 25, 2011 Resetting the codes to see what comes back is always my first step when multiple codes are present. P0141 Subaru O2 Heater Circuit (Bank 1, Sensor 2) This code is for the rear O2 sensor. It's mounted on top of the rear cat sticking out towards the drivers side of the car. It can be difficult to see from below unless you are right under the cat. The Knock Sensor code will probably come back unless someone replaced the knock sensor and never had the code erased. There's a member here selling brand new replacement knock sensors for under $25, look in the classified section. Any vacuum related problem can cause the EGR code to set. Definitely get some smaller diameter vacuum hose to fit on those metal lines. That code can also be set because the EGR valve is clogged, it's not difficult to remove and clean, a new gasket from a dealer is only a few dollars. It can be cleaned with just about any type of cleaner. I find Intake and Throttle Body Cleaner cuts through the carbon and sludge buildup in the intake system very quickly. There are a few hoses by the IAC for the PCV system. The PCV valve is threaded into the manifold and the hose goes from there down into the crankcase. One other goes to the intake hose/ box behind the throttle body. There are also two breathers hoses that come from the valve covers (one hose each) that attach to the bottom of the intake tube/ intake box. Either of those can cause problems since a missing or cracked hose will allow un-metered air into the intake behind the MAF sensor. Quote Link to comment Share on other sites More sharing options...
lefty2053 Posted December 25, 2011 Author Share Posted December 25, 2011 Thanks, for the info. I will check into things again tomorrow. I would today but I am headed out to go ice Fishing. Quote Link to comment Share on other sites More sharing options...
95legwagon Posted December 25, 2011 Share Posted December 25, 2011 16x flashing light is not a fun fix..... its a few hour job depending on how rusty bolts are lol duty c solenoid most likely. i did a write up on it.... will probably help you Quote Link to comment Share on other sites More sharing options...
subie94 Posted January 6, 2012 Share Posted January 6, 2012 (Not to hijack,but didn't wanna start new thread.also tried the search and got this thread) My 97 Outback (2.5,5spd) tripped a code P0400 awhile back (finally had it read due to inspection time) and i was told it had something to do with O2 sensor but also that bank 1 was lean (iirc,or could of been rich..should of written everything down cause now i'm not entirely sure.all i remember now for sure is the code) i haven't noticed any issues driving/idling,etc either..just cruddy gas mileage.. Quote Link to comment Share on other sites More sharing options...
screwbaru2 Posted January 7, 2012 Share Posted January 7, 2012 (edited) Did a little messing around today and cleared all the codes. Restarted the car 4 times and let it run. Checked the codes and all I get is Code P0141, O2 Sensor 1 Bank 2 Malfunction. I looked under the car to see if I could see the Sensors and never saw them. The car has the cats on but I didn't see a sensor nor holes for them. I also noticed the tail pipe and muffler is cut off. No Muffler and the pipe ends about 2 1/2 Feet from the tail of the car. Can the muffler being cut off be the whole problem with this code? Sounds like the problem right there. Are there any unconnected wires hanging around the exhaust system? Usually there are 2 O2 sensors #1 is the upstream (nearest the engine) mounted in the 1st cat and #2 down stream mounted in the sec cat. If someone hacked the exhaust system they may have used frakencats. Edited January 7, 2012 by screwbaru2 Quote Link to comment Share on other sites More sharing options...
Caboobaroo Posted January 7, 2012 Share Posted January 7, 2012 Just because you look under the car doesn't mean if you have them or not. They're usually in the upper half of the exhaust pipe to keep them from hitting on stuff. There should be one located in the top of the first cat which can be seen under the hood on the passenger side. Follow the back of the engine closest to the bellhop sing and you should see the sensor sticking up. The second one depends on year of vehicle. Sometimes they are sticking up from the second cat and connect close to the first sensor's pigtail. They also can be under the car pointing out of the exhaust toward the butt of the driver. This one come up along the driver side of the transmission and crosses over the top of the transmission bell housing and plugs into the harness on the passenger side. Quote Link to comment Share on other sites More sharing options...
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