Replace O2 sensor question

willowbrook · #1 08-02-2006, 08:17 PM

Hi all,
I was trying to replace the o2 sensor because of the ECU code 41.
For anyone with such experience, did you have to remove the exhaust shroud before screwing the sensor out? I noticed that it is pretty difficult to access the sensor with the exhaust shroud in place. Specially tools?
Thank you,

hondacivic99sivtec · #2 08-03-2006, 05:00 AM

Quote:

Originally Posted by willowbrook

Hi all,
I was trying to replace the o2 sensor because of the ECU code 41.
For anyone with such experience, did you have to remove the exhaust shroud before screwing the sensor out? I noticed that it is pretty difficult to access the sensor with the exhaust shroud in place. Specially tools?
Thank you,

my buddy has a 95 ex and all we did was jack it up and go from underneath. used a wrench and took it off. oh and degreaser and wd-40 helps.

willowbrook · #3 08-03-2006, 12:09 PM

Thank you!
I will try from under.

zapitzone · #4 08-03-2006, 12:29 PM

I don't have the answer to this, but I have O2 sensor questions. I have '90 Honda Civic. The engine check light comes on when the engine goes at high speed or up a hill. Is it the O2 sensor? Now I'm having trouble starting it when it's hot. Is it hard to replace the sensor?

willowbrook · #5 08-03-2006, 03:13 PM

You will have to get the trouble code that triggered the check engine light to make sure what the problem is.
Here is how:
http://www.troublecodes.net/honda/

Good luck,

zapitzone · #6 08-04-2006, 01:12 PM

Thanks for answering my post. I gave in and took it to a mechanic,

Z

01_Celica_GT · #7 08-09-2006, 08:54 AM

If I replace my o2 sensor, will it change my fuel-to-air ratio in the ecu or do I have to bring it in for them to do that?

CivicSpoon · #8 08-09-2006, 12:58 PM

The ecu will change it on it's own.

01_Celica_GT · #9 08-10-2006, 08:14 AM

So if I have really rich fuel, it wont be rich anymore?

Will it trigger a check engine code?

CivicSpoon · #10 08-10-2006, 12:15 PM

As long as it's running rich because of a bad O2 sensor, then it won't run rich anymore when you replace it. And you should only need to replace the O2 sensor if you're already throwing a code. If you're running rich and not throwing a code for the O2 sensor, chances are that there is a different problem.

01_Celica_GT · #11 08-30-2006, 08:24 AM

What other peoblem could it be? What would make my exhaust rich?

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