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Idles rough, starts right away, several codes?

Tiny
BHAMDOC1973
  • MEMBER
  • 2013 AUDI A5
  • 4 CYL
  • TURBO
  • 4WD
  • AUTOMATIC
  • 144,000 MILES
Idles rough, starts right away, several codes which am always positive most of them are connected, misfire as check engine flashes. If I remove the MAF sensor it gets better, and no flashing check engine. These are the codes from before I deleted them to see what stays.
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Saturday, February 18th, 2023 AT 3:27 PM

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Tiny
BHAMDOC1973
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  • 1,557 POSTS
These are after I deleted them.
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Saturday, February 18th, 2023 AT 3:28 PM
Tiny
KEN L
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Two of the codes are for the engine mounts which are common when they need to be replaced, the other codes could be caused by the P165F code which is due to the oil pressure control valve being clogged or not working. Can you see inside the valve cover to tell if the oil has been changed, is there a lot of sludge inside the engine? Here is the location of the valve so you can check it out. Please let me know what you find and upload images.
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Sunday, February 19th, 2023 AT 9:50 AM
Tiny
BHAMDOC1973
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  • 1,557 POSTS
I checked the fuses under hood and switched relay j271 to see if it makes difference, deleted all codes but these codes here stay in place and do not clear without starting the motor, so something is doing all of that throwing all these codes without the car being started.
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Saturday, February 25th, 2023 AT 7:25 PM
Tiny
BHAMDOC1973
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Inside the valve cover is clean.
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Saturday, February 25th, 2023 AT 7:26 PM
Tiny
BHAMDOC1973
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Found this loose do you know what it is?
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Saturday, February 25th, 2023 AT 7:27 PM
Tiny
BHAMDOC1973
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These won't delete with engine off.
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Saturday, February 25th, 2023 AT 7:33 PM
Tiny
BHAMDOC1973
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  • 1,557 POSTS
I checked the oil valve sensor but there is only a harness to it, I don't see a way to remove it, like it's part of the block.
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Monday, February 27th, 2023 AT 6:41 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,526 POSTS
It looks like the PCM is bad or you have a bad PCM ground, if the grounds are okay here is how to replace it in the images below. You can get a preprogrammed unit by searching Google or Ebay. Check out the images (below). Please let us know what happens.
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Monday, February 27th, 2023 AT 9:07 AM
Tiny
BHAMDOC1973
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By PCM ground you mean internal to the PCM? PCM is out already.
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Monday, February 27th, 2023 AT 10:06 AM
Tiny
BHAMDOC1973
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I checked the mounts, they are ancient.
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Monday, February 27th, 2023 AT 12:32 PM
Tiny
BHAMDOC1973
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I changed the oil valve sensor, idle has gotten way better, but EPC light still on. Multiple hidden codes, but idle is very stable.
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Thursday, March 2nd, 2023 AT 11:13 AM
Tiny
BHAMDOC1973
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Is this indicative of valve cover gasket or PCV leak?
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Thursday, March 2nd, 2023 AT 11:15 AM
Tiny
KEN L
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I don't think so, it looks like you need a new engine mount, camshaft actuator valve and the coolant pump.
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Friday, March 3rd, 2023 AT 9:53 AM
Tiny
BHAMDOC1973
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Hmmm, but mounts looked like they were changed.
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Friday, March 3rd, 2023 AT 9:58 AM
Tiny
BHAMDOC1973
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The codes for camshaft actuator are on all cylinders, so is there kne that controls them all? Is that what you mean by that?
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Friday, March 3rd, 2023 AT 10:05 AM
Tiny
BHAMDOC1973
  • MEMBER
  • 1,557 POSTS
I removed the front camshaft actuator and I think the pin was stuck so I cleaned it and freed it, then cleaned out all the solenoids on each cylinder, which are below the coils on passenger side. No check engine light, EPC still on, drive it around the corner drives good no issues with idle. Turned it off turned it on and I have these here, I think many disappeared. Delete and turn car off and on and they immediately there.
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Friday, March 3rd, 2023 AT 12:49 PM

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