Codes P0193, P0420, P0430, P0506, popping sound from air intake?

RAYMOND777

MEMBER
2006 MERCURY MARINER
6 CYL
2WD
AUTOMATIC
156,000 MILES

The vehicle listed above has V6.
Recently it has been making a muffled popping sound intermittently from the air filter box. It runs fine. After having codes checked, it came back with the following; P0193 - P0420 - P0430 - P0506.

Saturday, July 23rd, 2022 AT 2:11 AM

5 Replies

KEN L

MASTER CERTIFIED MECHANIC
42,883 POSTS

The P0193 code is the one that can cause all of these problems, fuel rail sensor. Here is the location and how to change it out in the diagrams below with a video of the job being done on a similar car:

https://youtu.be/A9dbXbydGro

Check out the diagrams (below). Let us know what happens and please upload pictures or videos of the problem.

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Saturday, July 23rd, 2022 AT 11:29 AM

RAYMOND777

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3 POSTS

Thank you Ken. I will order one from Amazon and let you know how it went.

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Sunday, July 24th, 2022 AT 10:26 AM

KEN L

MASTER CERTIFIED MECHANIC
42,883 POSTS

It is the best way to go when fixing these kinds of problems.

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Sunday, July 24th, 2022 AT 10:27 AM

RAYMOND777

MEMBER
3 POSTS

Ken, you are a genius! I never suspected that all these codes could be caused by a single malfunctioning part. I replaced the fuel rail pressure sensor as you said and the codes have cleared. The vehicle is running normally again.
Many thanks to you all!
Raymond

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Wednesday, August 10th, 2022 AT 4:23 PM

KEN L