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I replaced O2 sensor and Cat Converter. Check engine like still comes on?

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Old Aug 8, 2004 | 05:50 PM
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Default I replaced O2 sensor and Cat Converter. Check engine like still comes on?

I have a 94 intergra LS. The "Check Engine Light" was coming on so I changed the Cat Converter and the O2 sensor but the "check engine light" still comes on. It doesn't come on everytime I take the car out but it does most of the time. I don't want to spend the money to have it put on a diagnostic computer at a repair shop.
I just read on another post to reset the ECU by taking out a couple of fuses.
What are these fuses and is that what I should do also or is their something else that I need to replace.
Thanks in advance

R1jamn
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Old Aug 8, 2004 | 05:54 PM
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You could try resetting the ECU by disconnecting the battery also.
Did your car fail the smog? My 95 is going into the test place tomorrow and I think it might fail on emissions, I may need a new cat also.
How much were your O2 sensors and where did you get them if you don't mind me asking?

Chris
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Old Aug 8, 2004 | 06:30 PM
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Originally Posted by bart_dood
You could try resetting the ECU by disconnecting the battery also.
Did your car fail the smog? My 95 is going into the test place tomorrow and I think it might fail on emissions, I may need a new cat also.
How much were your O2 sensors and where did you get them if you don't mind me asking?

Chris

I still need to smog test it. I will not do it until the "check engine light" goes out. I picked up a Bosch Universal O2 Sensor from PEP BOYS. I paid around $50 for it.

Does disconnecting the Battery Reset the ECU? Because on another post it was suggested to pull a couple of fuses.

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Old Aug 8, 2004 | 06:38 PM
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Disconnecting the battery should reset everything, including your radio, make sure that you have the radio code before you disconnect the battery, otherwise you will have no radio for a while.
Disconnect it for around 15 minutes, that should be plenty of time to reset everything, let us know if it gets rid of the check engine light.
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Old Aug 8, 2004 | 07:30 PM
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Umm... I would either pull the code yourself, or have a mechanic do it. What code did you get that inspired you to replace your cat & O2 sensor?
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Old Aug 8, 2004 | 07:44 PM
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Originally Posted by Epoch
Umm... I would either pull the code yourself, or have a mechanic do it. What code did you get that inspired you to replace your cat & O2 sensor?

My Ls Integra has 166,000 miles on it (completely stock) and I figured it was time to replace the O2 sensor and Cat. I don't know how to pull the code myself but would gladly do it if I knew how. Something about a piece of wire or a paper clip.

And I do have the code for my radio so there is no problem with that.

R1jamn
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Old Aug 8, 2004 | 08:59 PM
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Originally Posted by R1jamn
My Ls Integra has 166,000 miles on it (completely stock) and I figured it was time to replace the O2 sensor and Cat. I don't know how to pull the code myself but would gladly do it if I knew how. Something about a piece of wire or a paper clip.

And I do have the code for my radio so there is no problem with that.

R1jamn
https://www.honda-acura.net/forums/s...light=ecu+code

4th post down
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Old Aug 8, 2004 | 09:08 PM
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Originally Posted by Epoch

Thanks.
I found that post in the "Search".
But where exactly is the ECU and this diagnostic plug. Somewhere under the glove box? Is there only one diagnostic plug there. I was reading something about an ABS plug too and I don't want to confuse the two.

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Old Aug 8, 2004 | 09:32 PM
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OK, right by the passenger kick panel, underneath the glovebox there's a green rubber connector mounting thingie. Take the plug out with just the brown and black wires, and use a paperclip to jump it. It's easy and obvious when you look at it
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Old Aug 8, 2004 | 10:06 PM
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Ok, I went out to the car with paper clip in hand and found the diagnostic plug. I'm getting a code #6 (coolant temperature) and it repeats. No other codes are coming up.
The engine isn't overheating according to the temp gage inside the car.
I checked the coolant level after I got the code and the coolant level is good.
The overflow tank is good to.
I just replaced the radiator about six months ago because it started to leak.
Should I change out the thermostat or just reset the ECU by disconnecting the battery and see if that clears it out.

R1jamn
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