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Codes P0511 and P0325, what parts do I buy?

Tiny
MAKAILA ROSE
  • MEMBER
  • 2003 HONDA ACCORD
  • 2.4L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 184,000 MILES
Hi! I have the car listed above that is jerking and giving codes P0511 Idle Air Control Circuit, and P0325 Knock Sensor 1 Circuit Bank 1 or Single Sensor.
I am wondering which parts I should purchase. My mechanic says we will replace the idle air control valve, but is there something else too for the first code?
Thanks.
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Tuesday, March 5th, 2024 AT 1:09 PM

7 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,973 POSTS
So, these codes are two different problems, you need to but the idle air control motor and the knock sensor for the engine I have included how to do so in the images below.

P0511 - Idle Air Control Circuit Malfunction

P0325 - Knock Sensor 1 Circuit Malfunction (Bank 1)

Check out the images (below). Please let us know what happens.
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Tuesday, March 5th, 2024 AT 6:20 PM
Tiny
MAKAILA ROSE
  • MEMBER
  • 4 POSTS
Hello, thank you for your response. :) Is this what the correct part looks like?
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Tuesday, March 5th, 2024 AT 7:01 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,973 POSTS
Yep, that is it, here are more instructions on how to change it out. Check out the images (below). Let us know if you need anything else.
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Wednesday, March 6th, 2024 AT 8:40 AM
Tiny
MAKAILA ROSE
  • MEMBER
  • 4 POSTS
Update 3/10/24:
When my mechanic opened the gasket or the part he needed to get to the Idle, he noticed the entire Throttle Body was rusted and old too. Now, I am returning that singular part above and replacing the entire Throttle Body with the Idle Air attached to it. Will update you guys once it’s in.
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Sunday, March 10th, 2024 AT 11:13 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,973 POSTS
Sounds good thanks for letting us know.
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Tuesday, March 12th, 2024 AT 11:00 AM
Tiny
MAKAILA ROSE
  • MEMBER
  • 4 POSTS
Now I am getting 2 new codes. I put my car in drive, reverse for 3 seconds, my RPM’s drop to zero as the engine light comes on, and my car won’t go. Here’s the codes. P0107 and P0122. What could be wrong? Is the throttle body bad? I don’t understand, we replaced both parts (throttle and knock sensor). Thank you for your help.
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Monday, March 18th, 2024 AT 4:28 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,973 POSTS
With the p0107 code the MAP sensor could be disconnected, or you have a clogged catalytic converter. Here is the location of the sensor so you can check it out and a guide to help you test the catalytic converter.

https://www.2carpros.com/articles/how-to-test-a-catalytic-converter

As far as the TPS sensor code that will be a problem with the throttle body, did you buy it new? If so, it is defective. Check out the images (below). Please let us know what happens.
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Monday, March 18th, 2024 AT 10:35 AM

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