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Old 01-23-2013, 10:48 PM   #1 (permalink)
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Default Catalytic converter

I have a 2000 mt that keeps throwing the p0420. It has had the ECM fixed in 2000. Took it to a Honda guy and he said it needed a cat and the o2 sensors were working. Does anybody have a cat they would sell.
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Old 01-23-2013, 11:46 PM   #2 (permalink)
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Use a spacer on the second 02 sensor, clear the code and see if it returns.

HTH
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Old 01-24-2013, 12:49 AM   #3 (permalink)
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Check out this thread that shows the spark plug non fouler:
Spark plug non fouler - Honda-Tech
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Old 01-24-2013, 09:07 PM   #4 (permalink)
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Quote:
Originally Posted by Willie Williford View Post
Use a spacer on the second 02 sensor, clear the code and see if it returns.

HTH
Willie
That's the ticket.

Advance Auto Parts has the DORMAN 42009 spark plug anti-fouler kit for $6.57. Drill 1/2" hole in one of them to mount the sensor into and then assemble both of them as the spacer.

Make sure you have the radio code before you disconnect the battery.
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Old 06-14-2013, 02:07 PM   #5 (permalink)
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Quote:
Originally Posted by purged981 View Post
I have a 2000 mt that keeps throwing the p0420. It has had the ECM fixed in 2000. Took it to a Honda guy and he said it needed a cat and the o2 sensors were working. Does anybody have a cat they would sell.
I am very interested
So what happened?
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Old 06-14-2013, 04:08 PM   #6 (permalink)
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As with most threads on problems/solutions that have no response, one can only assume the results.
That's why I suggest most INSIGHTERS post the results.
In my opinion they are not true INSIGHTERS.

Willie
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01 MT "Little Red Rocket"
The first "TURBOCHARGED" Hybrid, Insight G1-(01/2003)@65K miles. RIP 334K
MaxIMA Battery (Serial #2), on 8/25/12 @ 301K miles
Use: 346K mi. @ 58.0 LMPG


http://www.insightcentral.net/forums...d-insight.html
http://www.seattleeva.org/wiki/User:...ies_Red_Rocket
http://autos.groups.yahoo.com/group/.../message/12630
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Old 06-14-2013, 11:53 PM   #7 (permalink)
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Oh come on, that is a little harsh. Though it does certainly frustrate me too.

Quote:
Originally Posted by Willie Williford View Post
As with most threads on problems/solutions that have no response, one can only assume the results.
That's why I suggest most INSIGHTERS post the results.
In my opinion they are not true INSIGHTERS.

Willie
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Old 06-17-2013, 12:52 AM   #8 (permalink)
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Quote:
Originally Posted by Science And Energy View Post
Oh come on, that is a little harsh. Though it does certainly frustrate me too.
What's really harsh is that the adapters didn't completely eliminate the P2000 (P0420 on the pre '05 cars) code on my car. Once in awhile it returns after a long lean burn drive when I slow down. Before the code came back very quickly.

I can reset the code with the OBDII though so it's just annoying.

My ECM also has the TSB firmware update installed.
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1988 Honda CRX HF, 44/51 mpg
1963 Lotus 7 replica, 12 mpg
1962 Henny Kilowatt, 40 miles/charge @ 40 mph
http://dmr-architect.com/~locouki/
DIY Grid Charger build instructions, bill of materials,
how to build a discharge dummy load and more.
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