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Everything posted by brus brother
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First, a little history. 2005 Outback 2.5i AT wagon 135k miles. I have had the intermittent and recurring P0420 (warning: your catalytic converter is dying/dead) for about 30K miles so, in the interim, I may have already done irreparable damage to the cat(s). Consensus is that cats don't die, they are killed! When I first went to the dealer with the code, they said "You need a new cat". Well, yes that may be but without diagnosis of what caused the damage to the cat, I would need yet another new cat in short order. Cardoc on subaruoutback.org has an excellent writeup on possible causes: http://www.subaruoutback.org/forums/66-problems-maintenance/49537-p0420-diagnosis.html With the use of a $10 VAGCOM OBDII to usb cable and RomRaider free software, I was able to log real time info on my car's performance. I am attaching the output zip file in the hopes of getting some help in proceeding with a cure for the underlying cause. If you want to follow this, my posting (username - Juicer) starts at #194 at the above link and in addition, off line, Cardoc's analysis of the data warns: "Check fuel delivery, pressure and check for vacuum leaks if the fuel pressure is good. Bank 1 is on the end of the fuel system, so if fuel flow is low, it will make bank 1 run lean, which is what is happening. The rear O2 sensors all show a lean mix. Find it quick or you'll be buying a couple CATs due to melting." Soooo, after 2 years and 30K miles after SOA's "recommendation", monkeying around with spacers, new front O2 sensor, and voodoo, there appears to be a LOGICAL DIAGNOSIS of the underlying cause. There have been so many posts about the P0420 that I hope to be able to collaborate to make this a sticky for those unfortunates who follow. In the meantime, in my particular case, I need some guidance on how to "Check fuel delivery, pressure and check for vacuum leaks". romraiderlog_20130716_180554.zip
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I know nothing about emergency brakes etc but I would be uncomfortable with the "roll again" feature. For example, how the frick can you park in a hilly place like San Francisco without knowing exactly how much room to leave so you don't end up lap dancing with the car ahead of or behind you?? I know you are supposed to curb the wheels, but really! All of your experiences should be documented and memorialized with SOA as well as the local dealership. I would also include a statement in all of your written correspondence with SOA that they will be held liable for any incident in that they have now been made aware of the situation. That usually gets their attention. Ask that a regional manager meet you to discuss and view the recording. Good luck.
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Welcome to the board TJ. Unfortunately I still get the code 0420. I haven't replaced the cat $$. I bought a code reader/clearer Link It will also test that all systems are "ready" as in ready for emissions testing! I clear the code and it stays off for a while. The code comes and goes and I only need be concerned in passing emissions every two years. Clear the code, drive a fews cycles and all systems will test ready. Drive to test center, smile, pay the fee and away you go.
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Speaking of CT winters, the CT DOT just responded to truckers request concerning road deicing materials. "The Motor Transport Association of Connecticut says legislators should make deicers like magnesium chloride illegal. Association President Michael Riley told the Republican-American of Waterbury ( http://bit.ly/11BAtQ7) that the chemical is corroding trucks at an unprecedented rate and officials should be worried about it affecting bridge metal. State DOT spokesman Kevin Nursick says the mix works well and it's up to motorists to wash their cars to avoid corrosion." Doh, why didn't I think of that...
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O2 refers to the oxygen (O2) sensor. Not sure if you just have one or two pre-catalytic (front) converter sensors and one or two post-catalytic converter (rear or secondary) sensors. They provide feedback for emissions efficiency of the catalytic converter(s) by comparing the values pre and post converter. They look like the butt end of a spark plug sticking into the exhaust system before and after the catalytic converter. There is an electrical connection attached to same.