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brunner
Member
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Posted: Sun Jan 17th, 2010 10:31 pm |
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this is a quck easy way to punch out you catalytic converter and avoid the check engines light from coming on and it costs about 15 buck to fix for anyone who doesn't mind modifying you emission gear hears a good trick
Error codes thrown by your cars computer that indicate a bad catalytic converter, actually originate from the oxygen sensors. Typically, a car has an oxygen sensor upstream and downstream of the converter. The upstream converter is used to feedback information to your cars computer, allowing it to make sure that your engine is running optimally. The downstream sensor's only use is to test how well your converter is working. If your converter is shot, it may still be possible for you to create a condition that makes your downstream oxygen sensor think that it is actually working. This fix requires that your oxygen sensor is in working condition.
Step 2
Disconnect your cars battery. This will reset the computer and clear the existing error codes. Locate the oxygen sensor that is downstream (closer to the tailpipe) of the catalytic converter. Remove the sensor, and take to your local car parts store. Find the part called a defouler. The threads on your spark plugs match the threads on your oxygen sensors, thus the sensor will be able to thread into the back of the defouler. Buy 2.
Step 3
Measure the diameter of the tip portion of the oxygen sensor that extends past the threads. Select a drill bit that is slightly larger than this diameter, but still smaller than the defouler threads. Put the defouler in a vise, and drill it out until you have removed enough material to allow the sensor to screw all the way into the defouler. Be careful not to drill through the end of the defouler, as you do not want to increase the size of the small hole in the end of the defouler.
Step 4
Now, thread the drilled out defouler into the exhaust pipe where the oxygen sensor was removed from. Install the oxygen sensor into the defouler, and reconnect the wiring and reconnect the battery. Your car is ready to start, and will no longer throw any error codes related to the catalytic converter. Last edited on Sun Jan 17th, 2010 10:33 pm by brunner
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colin
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Gonecountry
Member
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Posted: Sun Jan 17th, 2010 11:26 pm |
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Interesting, Does the article say anymore about the science of how this works.
I'm gueesing that its just not exposing the tip of the o2 to as much exhaust.
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1996 Ford F150 302cid, 31x10.5x15's
FOR SALE
1996 Dodge 2500 Cummins Turbo Diesel
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DirtyMexican
Member
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Posted: Sun Jan 17th, 2010 11:49 pm |
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| that always wont work, will work on some older vehicles, on some newer ones and some wont, depends on whats written into the ecu programming to detect sensor reading faults, certainly would stop a heater circuit code, most toyota's that proboly wont work, to test it fully will have to drive it on the highway for a good hour two key cycles in a row...... also not to mention all vehicles will not clear their codes by simple disconnecting the battery Last edited on Sun Jan 17th, 2010 11:54 pm by DirtyMexican
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Gonecountry
Member
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Posted: Sun Jan 17th, 2010 11:56 pm |
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| You must mean wouldnt on the heater code. It wouldnt touch the heater circuit code and with toyotas it more times than not is the heater circuit thats faulty. Course you know that being an ex toy tech. Last edited on Mon Jan 18th, 2010 12:02 am by Gonecountry
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1996 Ford F150 302cid, 31x10.5x15's
FOR SALE
1996 Dodge 2500 Cummins Turbo Diesel
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DirtyMexican
Member
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Posted: Mon Jan 18th, 2010 12:02 am |
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| thats what i mean it would stop it from tossing a htr circuit code which it would when simply disconnecting, assuming the htr circuit was still good, and you didnt mess the sensor up removing it, but it will still throw a code on a toyota, may work on some other obd2 makes but i dont think will get away with it on a yota, they have pretty strick tolerences in the programming
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Gonecountry
Member
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Posted: Mon Jan 18th, 2010 12:06 am |
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| In this fix that brunner posted they reinstalled the sensor. THis is still more likely to work on something other than a yota
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1996 Ford F150 302cid, 31x10.5x15's
FOR SALE
1996 Dodge 2500 Cummins Turbo Diesel
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90bronco
Super Moderator
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Posted: Mon Jan 18th, 2010 12:15 am |
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brunner was having problems with his 02 sensor's on his Toyota Tacoma ,wonder if he did this to his ..... 
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90 bronco ,351 auto 6"lift ,315/75/16 baja claws 9000lb tabor winch ,on board air
just an old truck .
If it aint broke ,fix it till it is
Allen
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DirtyMexican
Member
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Posted: Mon Jan 18th, 2010 12:24 am |
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| which is why i mentioned the htr circuit, because then this will not fix his problem if thats actully what the code is for
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90bronco
Super Moderator
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Posted: Mon Jan 18th, 2010 12:31 am |
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| ahhh i got ya ,He mentioned he was going to go to South Cove Auto and put it on the computer .
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90 bronco ,351 auto 6"lift ,315/75/16 baja claws 9000lb tabor winch ,on board air
just an old truck .
If it aint broke ,fix it till it is
Allen
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brunner
Member
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Posted: Mon Jan 18th, 2010 10:21 pm |
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| no light as of yet seems to work but further testing needs to be done ill keep ya posted and i put new sensors in the fromt and back on the tacaco
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colin
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