Taking off my cat. conv?

Bryan_D

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I have a 1996 jeep and it has the o2 sensor before and after the cat, and as we know the guts of the cats dont like bumps. How do I get around this? I want to put a drop pipe when I am in the dirt. Can I get a dummt sensor or what. If anyone can help it would be great.
 

cleartoy

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You need both sensors for the EFI to work right. Usually 96 and up is OBD2.

You could just flange your cat, then put a straight pipe with flanges on it to make easy removal.

85 Toyota xtracab 4x4(for sale)
94 Toyota stdcab 2x4
99 Yamaha YZ250

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geoff

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the best thing to do is convert to obd1. if that is over and above your wiring capabiliites, generally the 96-98 obd2 1st generation cars will not throw a code. so get another cat from a junkyard, and gut that. That is the easiest hting;. If you get a code, then you can get an o2 sensor simulator that keeps the ecu happy despite the lack of a cat. hope this helps.

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cleartoy

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Guess i dont understand. I got a 94 Toy, which is OBD1 i believe...it has a sensor before and after the cat from the factory. I Put on header, with straight 2.25" piping with no cat all the way back except a Magnaflow straight through muff, and i never got a check engine light.

The 2 O2 sensors are in place and functioning.

85 Toyota xtracab 4x4(for sale)
94 Toyota stdcab 2x4
99 Yamaha YZ250

Got Sand??
 

rdc

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Jegs and summit both have the simmulators in there. I think its called closed loop 02 sensor or something. Do these simmulators effect the peformance at all?
 
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