Code P2294, where is the fuel pressure regulator 2 located?

Tiny
KIMOOOOOZ
  • MEMBER
  • 2007 AUDI Q7
  • 3.6L
  • V6
  • 4WD
  • AUTOMATIC
  • 116,000 MILES
My OBD Show there are P2294 code in my car.
Which is the fuel pressure regulator 2.
I changed the one under the back seat. And I still have same code and same issue.
So, I don't know where is the fuel pressure regulator 2 located in this car.
Thursday, October 12th, 2023 AT 1:23 PM

24 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,262 POSTS
Hi,

Based on the code, the sensor is located at the rear of the engine compartment on the left side. Is that what was replaced?

Let me know.

Take care,

joe

See pics below.
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Thursday, October 12th, 2023 AT 3:12 PM
Tiny
KIMOOOOOZ
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Thank you for your fast reply.
But the one you showed me is the sensor (fuel rail pressure sensor) so this is not the fuel pressure regulator 2.
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Thursday, October 12th, 2023 AT 5:50 PM
Tiny
KIMOOOOOZ
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I sent you a picture of my engine to show how it looks.
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Thursday, October 12th, 2023 AT 5:51 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
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Hi,

The sensor electronically regulates the pressure. I attached the diagnostics below specific to the code you have. It walks me straight to the sensor I mentioned. I believe the one you replaced is for the low-pressure fuel pump.

Let me know.

Joe

See pics below.
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+1
Thursday, October 12th, 2023 AT 8:47 PM
Tiny
KIMOOOOOZ
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That's so helpful. I will check and let you know.
Thank you so much for your help.
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Thursday, October 12th, 2023 AT 8:59 PM
Tiny
JACOBANDNICKOLAS
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Hi,

You are very welcome. Please be careful when working on or around the high-pressure fuel pump. It can be under a lot of pressure.

Take care,

Joe
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Thursday, October 12th, 2023 AT 9:05 PM
Tiny
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Thanks.
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Thursday, October 12th, 2023 AT 9:23 PM
Tiny
KIMOOOOOZ
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Hello. Sorry to be annoying but I just want to let you know I changed it but I still have the same issue.
I ordered the fuel pump and I will change it and we will see.
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Wednesday, October 18th, 2023 AT 8:30 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,262 POSTS
Hi,

Thanks for the update. I just wish it was better news. If you clear the code, does the same one return?

Let me know.

Joe
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Thursday, October 19th, 2023 AT 5:06 PM
Tiny
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Yeah.
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Thursday, October 19th, 2023 AT 5:11 PM
Tiny
KIMOOOOOZ
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I ordered the whole high pressure fuel pump and we will see. Maybe that's the problem.
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Thursday, October 19th, 2023 AT 5:34 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,262 POSTS
Hi,

Were you able to perform the diagnostics I attached above for the specific code? I ask because I know what you purchased is expensive. I don't want that replaced only to have the same problem.

Let me know.

Joe

PS: BTW, you are not annoying in any way. We need to get this thing running. LOL
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Thursday, October 19th, 2023 AT 5:54 PM
Tiny
KIMOOOOOZ
  • MEMBER
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To be honest I didn't, but I can do that tomorrow.
I want to let you know that I have P1612 code do you think this code is connected with the p2294 code?
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Thursday, October 19th, 2023 AT 11:20 PM
Tiny
JACOBANDNICKOLAS
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Hi,

The P1612 is related to a coding error within the ECM. Have you done anything to it? Also, here is an interesting point. The code isn't relevant for this model year.

Certainly, if the ECM isn't able to communicate, it will cause all kinds of issues.

Let me know.

Joe
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Friday, October 20th, 2023 AT 2:26 PM
Tiny
KIMOOOOOZ
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Hi,

i didn't do anything to get this code.
I just bought the car like that.
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Friday, October 20th, 2023 AT 3:17 PM
Tiny
JACOBANDNICKOLAS
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Try the test I provided above first. Also, let me know if and or how the vehicle runs if at all. If we need to code the ECM, that will require vag-com software. It isn't something that most people have.

Let me know. However, I have a feeling the problem is with the ECM. Since you purchased it this way, we have no idea what was done and why.

Let me know. We'll have to do this one step at a time.

Take care,

Joe.
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Friday, October 20th, 2023 AT 8:44 PM
Tiny
KIMOOOOOZ
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I will do the test and I will let you know.
I really appreciate that, thank you so much for your care.
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Friday, October 20th, 2023 AT 11:59 PM
Tiny
KIMOOOOOZ
  • MEMBER
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I did the test. It's the (G247) wiring and its shows that its connected.
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Sunday, October 22nd, 2023 AT 1:06 PM
Tiny
KIMOOOOOZ
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I disconnected the sensor and I scan the car again its show me this code.
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Sunday, October 22nd, 2023 AT 1:10 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
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Hi,

Based on this information, I suspect the ECM either needs coded or replaced. Is that something you have the software to do? It will require vag-com software.

Let me know.

Joe
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Sunday, October 22nd, 2023 AT 8:52 PM

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