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Codes P0190 and P0343, rattling after Hpfp and CAM follower replacement?

Tiny
ADAMJH66
  • MEMBER
  • 2006 AUDI A4
  • 2.0L
  • 4 CYL
  • TURBO
  • 4WD
  • AUTOMATIC
  • 120,000 MILES
I replaced the Hpfp and cam follower after the old ones failed and now there is a horrible rattling noise coming from the back of the engine. There are also codes p0190 and p0343.
Saturday, April 1st, 2023 AT 2:13 PM

5 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,747 POSTS
Hi,

The P0190 is specific to the fuel pressure sensor. The P0343 is for the camshaft position sensor. I attached pics below for both. Check to see if everything is properly connected.

Next, can you describe the sound? Does it change with engine speed? Is there anything you can do to change it? Also, if possible, record and upload it for me to hear.

Let me know.

Joe

See pics below.

Pic 1 CMP Pic 2 FPS
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Sunday, April 2nd, 2023 AT 7:43 PM
Tiny
ADAMJH66
  • MEMBER
  • 3 POSTS
It changes with RPMs. It’s a very loud rattling, metal on metal type of noise. Nothing has changed it so far, it’s been constant. The video I posted is from inside the car, this is with the hood closed and it has a stock exhaust to put some perspective on how loud the noise is.
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Sunday, April 2nd, 2023 AT 7:46 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,747 POSTS
Hi,

I did hear it. However, the audio on a laptop isn't too good. LOL To me it sounds like a bearing issue. If you open the hood, can you tell where the noise is the loudest? Also, where you performed the repairs, was everything torqued to the manufacturer's specifications?

Let me know.

Joe
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Monday, April 3rd, 2023 AT 7:28 PM
Tiny
ADAMJH66
  • MEMBER
  • 3 POSTS
Yes, everything is torqued down. The noise is coming from the back of the motor, around where the timing chain is.
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Monday, April 3rd, 2023 AT 7:46 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,747 POSTS
Please understand that not being there makes it more difficult for me. When you installed the HPFP, was the sleeve in the cylinder head undamaged, or was it replaced? Did you rotate the camshaft until the sleeve has reached the lowest point before installing the HPFP? I have a feeling that is where the noise is coming from. That pump is actuated by a lobe on the camshaft. If the sleeve was not fully installed, not in good condition, or if the lobe on the camshaft was damaged, it can be causing this noise. Also, you may have gotten a faulty new pump.

I would take an automotive-type stethoscope and see if that is where the noise is coming from. If it is, remove and inspect it.

Let me know.

Joe
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Monday, April 3rd, 2023 AT 9:25 PM

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