Question about 2002 Honda CR-V

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Catalytic Converter for Honda CRV 2002- cost/necessity of repair

I am told that my Honda CRV 2002 needs a new catalytic converter and that the cost will be between $1750 and $2200. The engine light came on but it went off by itself and I do not have faith in the mechanics. Help?

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Run scanner for trouble codes, some auto parts stores will do this for free

Posted on Oct 09, 2009

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Posted on Jan 02, 2017

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2002 Buick lesabre check engine light flashing and runs rough help


You have a misfire ,spark plug ,coil etc. .. the flashing check engine light is to warn you that the misfire is severe enough to damage the catalytic converter ! You need to take it to a repair right away ! A new catalytic converter can cost as much as $1,000 . The shop will check the code's in the PCM . this will tell them what cylinder is misfiring !

Apr 22, 2015 | 2002 Buick LeSabre

1 Answer

I have a honda crv 2005. I got a P420 on it 12/31/13. I went to the dealer and did a diagnostic. They claimed I need a new converter (the most expensive repair, of course). They shut off the sensor and it...


There are a number of things that could be causing this p0420 catalyst efficiency code. The most common thing is the catalytic converter itself is no longer functioning properly. The other likely thing is the rear O2 (oxygen) sensor is no longer working properly. Other things could include exhaust leaks, damaged exhaust pipes, damaged O2 sensor wiring/connectors, plugged catalytic converter. The easiest thing to do first is a visual check of things. Visually inspect the exhaust system for leaks, check the catalytic converter for dents, holes, severe discoloration, and check for a rattle inside. If any of those syptoms are there, the converter likely needs replacement. To do a rattle check you need a rubber mallot to lightly tap the converter. If you hear stuff rattle in it then it will need replaced. Then, visually inspect the downstream O2 sensor (behind the converter). Check for broken wires, obvious faults, etc. If all that checks out, you'll want to check the operation of the O2 sensor. To do that, you'll need access to a scan tool or oscilliscope. Check that the waveform is pretty steady. If the reading fluctuates then the sensor is likely bad and will need to be replaced.

Jan 19, 2014 | 2003 Honda CR-V

1 Answer

Catalytic converter costs


Buy new car cats are not cheap.

Oct 28, 2013 | Honda Cars & Trucks

1 Answer

PO420 code for CR-V Honda 2002


p0420 is a catalytic converter efficiency code. It sets when thecm determines that the catalytic converter is no longer doing its job. The usual fix is to replace the catalytic converter. An O.E. or an aftermarket direct fit converter from a reputable manufacturer is your best bet. Lesser quality brands will leave your pocket book lighter to start but will cause more problems than they solve.

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

Aug 16, 2012 | 2002 Honda CR-V

1 Answer

Camshaft sensor and catalytic converter


Sometimes one problem causes many more. The camshaft sensor should be easy to access. Go to a good parts store and have a look at the diagram for part location. You may not need a Catalytic converter yet.

If the camshaft sensor went crazy you will not fire on all cylinders. Therefore the exhaust mixture will be rich and can damage the Catalytic converter. But when the repairs are made to the Camshaft sensor, give it some time to run correctly and see if the Catalytic converter clears up.

As with any repair, disconnect the NEG battery cable for 10 minutes to clear the old codes. Then use the car and let the car go for 300 miles or so to purge the Catalytic converter of excess fumes. Then if you need a newer Catalytic converter its almost like installing a muffler. You may need a special socket to change out O2 sensors from old to new.

Costs vary, Sensors are $20 to $50. Catalytics can be expensive, but Salvage yards have them used.

Jul 30, 2010 | 1997 Ford Taurus

2 Answers

2002 Mitsubishi Galant Front Catalytic Converter


A muffler shop should be able to replace just the converter

Aug 07, 2009 | 2002 Mitsubishi Galant

1 Answer

Engine using oil. No sign of leaking. Catalytic converter replaced 13 months ago, now needs replaced. Told need new engine. What is causing the catalylic converter to plug?


Was a leak down test performed on the motor?This will determine if the oil loss is due to bad rings or a head gasket.A head gasket can be repaired,rings will require an overhaul or new motor.Have checked the coolant for oil contamination?

May 31, 2009 | 2002 Nissan Altima

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