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OBD2 code P1505

Tiny
ANGEL0324
  • MEMBER
  • 2002 HONDA CIVIC
  • 1.3L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 120,000 MILES
What exactly is the code P1505 mean?
My car has rpm's problems.
Monday, July 27th, 2020 AT 4:54 PM

12 Replies

Tiny
DANNY L
  • MECHANIC
  • 5,648 POSTS
Hello, I'm Danny.

This code is related to the PCV - positive crankcase ventilation system. This code is stating you are having a leak in a PCV system component. I've attached a picture below on what to check. Hope this helps and thanks for using 2CarPros.
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Monday, July 27th, 2020 AT 5:05 PM
Tiny
ANGEL0324
  • MEMBER
  • 26 POSTS
Thanks. I'm going to check right now and see what I can find.
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Monday, July 27th, 2020 AT 5:09 PM
Tiny
DANNY L
  • MECHANIC
  • 5,648 POSTS
Hello again.

Sounds good. Keep us updated as to what you find. Thanks again for using 2CarPros.

Danny-
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Monday, July 27th, 2020 AT 5:33 PM
Tiny
ANGEL0324
  • MEMBER
  • 26 POSTS
This is what I found:
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Thursday, July 30th, 2020 AT 6:27 PM
Tiny
DANNY L
  • MECHANIC
  • 5,648 POSTS
Hello again.

Did you find any type of leak in the PCV-positive crankcase ventilation system?What electrical circuit were you testing? Let me know and we'll go from there. Thanks again for using 2CarPros.

Danny-
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Friday, July 31st, 2020 AT 2:27 PM
Tiny
ANGEL0324
  • MEMBER
  • 26 POSTS
The intake temperature sensor and the coolant temperature sensor.
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Friday, July 31st, 2020 AT 2:54 PM
Tiny
ANGEL0324
  • MEMBER
  • 26 POSTS
And I just discover this in the picture below.
May be this what causes the high voltage? The light on tester goes off when I pull the fuse corresponding to the backup lights!
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Friday, July 31st, 2020 AT 5:48 PM
Tiny
DANNY L
  • MECHANIC
  • 5,648 POSTS
Hello again.

What happens when the car is idling? Does the car stall out? Have you found any type of air leak in the PCV system rubber lines or ducting? When are the rpm's fluctuating that you are noticing? Get back to me and we'll go from there. The code P1505 is for an unmetered air leak in the PCV system and not electrical. Just trying to get an idea about the rpm issue you mention. Thanks again for using 2CarPros.

Danny-
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Sunday, August 2nd, 2020 AT 10:12 PM
Tiny
ANGEL0324
  • MEMBER
  • 26 POSTS
Finally this is what I found.
I don't know what it is, but I think that is where the leak is at.
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Tuesday, August 18th, 2020 AT 6:48 PM
Tiny
DANNY L
  • MECHANIC
  • 5,648 POSTS
Hello again.

Looks like you found your leak! I've circled your picture in red. Those rubber caps are available at all auto parts stores. After replacing cap delete the code to see if code stays gone. Hope this helps and thanks again for using 2CarPros.

Danny-
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Wednesday, August 19th, 2020 AT 3:17 AM
Tiny
ANGEL0324
  • MEMBER
  • 26 POSTS
Okay, thanks for the information.
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Wednesday, August 19th, 2020 AT 6:46 AM
Tiny
DANNY L
  • MECHANIC
  • 5,648 POSTS
You're welcome!
Keep us updated and thanks again for using 2CarPros. Hope you will use us again in the future.

Danny-
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Wednesday, August 19th, 2020 AT 8:21 AM

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