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Check engine light and code P0135

Tiny
JPEREZ489
  • MEMBER
  • 2013 HONDA ACCORD
  • 2.4L
  • 4 CYL
  • AUTOMATIC
  • 88,000 MILES
Hello, I had got a check engine light for a P0135 code on my car listed above EX model. The code was for Bank 1 Sensor 1, it gave me it as a “confirmed trouble code” and a “permanent trouble code” while the check engine light was on. Once this occured, I replaced the O2 sensor and the both the check engine light and the permanent code removed on their own after a fair amount of driving but the confirmed code still returns even if I clear it. I haven’t received a check engine or a permanent trouble code since I’ve replaced the O2 sensor and my car is running better than before, but still get the confirmed trouble code. I tried looking for an O2 sensor fuse in both the engine bay and the driver’s side fuse box of the car and can’t find one. Please help.

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Friday, March 5th, 2021 AT 10:32 PM

42 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,328 POSTS
Hi,

There is a fuse. It is A7 (15amp) in the underhood fuse box. For some reason, my manual doesn't have a layout of the fuses. See pic 1. That is what I have.

Now, start by checking that fuse. In addition to inspecting the fuse, confirm there is power both to it and from it. Here is a link to help:

https://www.2carpros.com/articles/how-to-check-a-car-fuse

Let's start with that. Let me know what you find or if you have other questions.

Take care and God Bless,

Joe

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Saturday, March 6th, 2021 AT 12:21 AM
Tiny
JPEREZ489
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Thanks you so much! I will definitely check that fuse today and update ASAP!
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Saturday, March 6th, 2021 AT 2:31 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
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You are very welcome. Let me know what you find or if you have other questions.

Joe
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Saturday, March 6th, 2021 AT 5:24 PM
Tiny
JPEREZ489
  • MEMBER
  • 26 POSTS
Hello Joe, I just checked the fuses I replaced it with a new one but it was good from the start. I checked them both and none of them seem faulty on a multimeter. I tested the brand new O2 sensor and when I touched the leads to the what I think is the heater unit(the two same color black wires) it dropped to 0.00 it didn't say open lead. The multimeter was set to 200 ohms. I still have the code show up on the scanner this is the first time I clear it with the car in on position as opposed to actually cranked and motor going. But I’m not sure which step to take next. The check engine light still hasn’t came back on nor the permanent code in the scanner just the confirmed code.
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Tuesday, March 9th, 2021 AT 11:54 AM
Tiny
JPEREZ489
  • MEMBER
  • 26 POSTS
Another update, on the wiring harness that connects to the O2 sensor, I checked the leads of the same thing the two similar colored wires in this case they’re both red, and I checked their resistance and I believe they are reading open. Multimeter set at 200 ohms instead of reading any type of number like 0.00 the multimeter just read 1. And when I switched to voltage just in case it was user error on my part using the wrong units, it stayed at 1. Then when I tried to put the car in the on position same reading.

Edit: I tried to do it again with more purchase on the leads for each side and it started climbing to 200 and once it got to 200 I guess cause I was on 200 ohms it just went to 1. When I switched to 200k it got a small reading of about 0.01-0.03.
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Tuesday, March 9th, 2021 AT 12:02 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
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If you are getting an open at the sensor, it sounds bad. Is this one that you replaced?

Joe
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Tuesday, March 9th, 2021 AT 5:35 PM
Tiny
JPEREZ489
  • MEMBER
  • 26 POSTS
It is the one I replaced. I checked it again at 200k ohms and it got a reading. I also have an update, after clearing the code with the car in the open position after driving the car around and scanning the car again it now reads zero codes. I’m not sure if that’s all it needed or if something else fixed it like the switching of the fuse and it took awhile to register? I’m not going to lie I’m a little confused.
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Tuesday, March 9th, 2021 AT 6:00 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
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Hi,

It could have been a connection issue due to corrosion or anything. And yes, removing and replacing the fuse could have allowed for a better connection.

Let's hope it doesn't come back on. If it does, let me know.

Take care,
Joe
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Wednesday, March 10th, 2021 AT 4:38 PM
Tiny
JPEREZ489
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Thank you I really appreciate it and value all your help!

Thank you, take care, and God bless!
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Wednesday, March 10th, 2021 AT 4:46 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
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You are very welcome. If something changes, let me know. Also, feel free to come back anytime in the future. You're always welcome here.

Joe
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Wednesday, March 10th, 2021 AT 5:06 PM
Tiny
JPEREZ489
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Thank you so much! I really appreciate it!
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Thursday, March 11th, 2021 AT 9:04 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
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Have you made any progress? If you can, let me know. I'm interested in knowing.

Joe
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Friday, March 12th, 2021 AT 5:37 PM
Tiny
JPEREZ489
  • MEMBER
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Hello,

Yes, I’ve kept scanning it and no code has returned. I’ve also pressed the smog check option on my scanner to check if it were to pass a smog check and it says yes as no codes found. That’s of course not including the other tests that would be run during a smog check.
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Friday, March 12th, 2021 AT 5:42 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
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Hi,

I'm glad to hear it is working properly. Thanks for letting me know. As far as the scan tool, I believe what you are referring to is the emission's readiness selection. That indicated all modules have been reset and passed. That's a good thing.

Let me know if you have other questions or need anything.

Take care and again, thanks for getting back to me.

Joe
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Friday, March 12th, 2021 AT 6:00 PM
Tiny
JPEREZ489
  • MEMBER
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Hello Joe, I have another update on the Honda. After having driven it for a couple of days and even drove it 72 miles miles yesterday, I decided to take it to get its smog check. Unfortunately, it did not pass. There is not light, my scanner doesn’t read any codes, and the car is running great still! But it did not pass because the evap system and the O2 sensor are “Not Ready”. The technician only spoke to me about the O2 sensor telling me that the car still needs to be driven around more and that I shouldn’t take it above 60 MPH. That I have 30 days from today’s date to take my car back for a retest. What I’m confused about is I’ve tested my car with my obd2 everyday since and I’ve received no codes and not check engine light ever came back so I have no idea what to do.
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Saturday, March 13th, 2021 AT 4:33 PM
Tiny
JACOBANDNICKOLAS
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Hi,

The different modules need to complete a drive cycle which is variable. It sounds like two of them were incomplete. Does your scanner have an emissions readiness setting? That will tell you if all the modules have completed.

Let me know.

Joe
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Saturday, March 13th, 2021 AT 7:43 PM
Tiny
JPEREZ489
  • MEMBER
  • 26 POSTS
It does and every time I did it, it said that it was good to go the only thing it said was “catalyst has not yet completed this test, Evaporative system has not yet completed this test, oxygen sensor has not yet completed this test” but I thought that just meant I couldn’t be run with just a scanner. Everything else came out good. The smog check place only said the evaporative system and oxygen sensor on their report, and the technician only told me about the oxygen sensor when speaking to me and told me to drive around for a few days.
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Saturday, March 13th, 2021 AT 7:51 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
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Hi,

That is exactly what needs to be done. I'm not sure where you are located, but I'm in PA. Here, we are allowed to have one incomplete and it will still pass. More than one, we can't inspect it.

Keep an eye on it. Once you see everything is complete, take it in for inspection.

Let me know what happens or if you have other questions.

Take care,
Joe
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Saturday, March 13th, 2021 AT 8:00 PM
Tiny
JPEREZ489
  • MEMBER
  • 26 POSTS
How do I do the drive cycle? Is there any specific steps I take? I heard here in CA they allow the evap system as the only exception, I’m assuming maybe that’s why the technician only spoke to me about the O2 sensor?

Thank you so much!
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Saturday, March 13th, 2021 AT 9:04 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
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Hi,

It would be really odd for them to not include the EVAP. That is what prevents gas vapors from entering the atmosphere.

As far as a drive cycle, there is no specific step for any of the systems. All you can do is keep driving it until it decides to complete.

I wish I had an easier answer, but I don't. Some reset very quickly and others seem to take forever. I've already put 200 miles on a customer's car to get it ready for the emissions inspection. I miss the old days. LOL

Take care and let me know if I can help and how things turn out for you.

Joe
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Saturday, March 13th, 2021 AT 10:32 PM

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