DG97Prelude

I did the code trick and found out the problem:

67-Catalyst System Efficiency Below Threshold

* Three way Catalytic Converter
* Secondary HO2S sensor
Any advise on how to get this fix asap I am tired of see the check engine light on.=)

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MODS:Retrofited Headlights by the Master,JDM Foglights,AEM V2 ,Greddy Lip,WWRS Kit

 

lumanogin

I threw the same code a few months ago. I reset the ecu then and I haven't seen it come back on since.

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DG97Prelude

How can I do that or sould I just fix the problem??

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MODS:Retrofited Headlights by the Master,JDM Foglights,AEM V2 ,Greddy Lip,WWRS Kit

petern101

^pull the battery for 20 minutes (or so)

maybe get a new cat?

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"I am a ricer because I have Z3 fenders"

lumanogin

yea just pull the negative terminal and wait 10 or 20 mins and then put it back and start it up.

might just be something funky that time that made the code come out. if it comes back then get a new cat. carsound for $40 i think.

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DG97Prelude

^^^^Yea already got a new cat lol the other day ....

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MODS:Retrofited Headlights by the Master,JDM Foglights,AEM V2 ,Greddy Lip,WWRS Kit

DG97Prelude

I did the battery thing already engine light went off THANKS

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MODS:Retrofited Headlights by the Master,JDM Foglights,AEM V2 ,Greddy Lip,WWRS Kit

lumanogin

glad it was just the cat

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marcucci

Remove the 7.5A clock/radio fuse under the hood. Removing the battery is way overkill.

The problem is likely cat efficiency, i.e. it's a high flow cat or a dying cat, OR it's a bad secondary O2 sensor. Could be a bad primary and you're running too rich.

No matter what, if the cat died you need to find out why, they don't die unless they've taken a really hard hit or you are running rich.

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1997 Honda Prelude is currently: Running | 1991 Isuzu Trooper is currently: Without AC