New owner with an issue

[richy_p]

Hello to you all. I just got myself a q5 2010 with the 3.0tdi. It goes well and I love it. Recently though, as I floor the gas pedal, the coil light comes up and goes into limp mode. I have a carista OBDii and it says code 05061. Any help pls pls pls.

[Steve Q]

This might help: 

https://www.a5oc.com/threads/3-0-tdi-limp-mode-after-accelerating.26354/

[richy_p]

that article says could be an injector wiring issue with an injector on the the group B side. Which side of the v6 is group B injectors?

[Steve Q]

4 hours ago, richy_p said:

that article says could be an injector wiring issue with an injector on the the group B side. Which side of the v6 is group B injectors?

I'm not sure to be honest, and google isn't helping much. Here's another thread about it though: 

https://mhhauto.com/Thread-Audi-A5-problem-injector-group-b-fault

[richy_p]

So a garage has confirmed the code of p1249, but unsure of it's meaning. So now I'll go to Audi and ask them I suppose. Also had pre-cat o2 sensor come up on their diagnostics system. Thinking thatl be coz of the previous code.

[Steve Q]

From google: 

"P1249 Meaning

The Engine Control Module (ECM) supplies voltage to each fuel injector on the injector high voltage supply circuits. ... When a fuel injector circuit condition is detected by the ECM, the affected fuel injector(s) is disabled".

[richy_p]

My bad. The code they got was p2149.

[Steve Q]

That fits. Here's googles interpretation: 

OBD Code P2149 - Fuel Injector Group 'B' Supply Voltage Circuit/Open. This OBD-II code is defined as a Fuel Injector Group "B" Supply Voltage Circuit/Open, it is set by the Powertrain Control Module of the vehicle.

[richy_p]

Any idea what it means by group B? I'm gonna check all the voltages and ohms of all the injectors and connectors later and see what that brings me.

[Steve Q]

2 hours ago, richy_p said:

Any idea what it means by group B? I'm gonna check all the voltages and ohms of all the injectors and connectors later and see what that brings me.

No I don't unfortunately, abd I did do a Google search and search through the forums. As it seems to be a wiring issue, it's worth checking all of it both sides just in case there's signs of potential issues with other parts of it. 

[richy_p]

Ok, so I believe it to be injector 5 or 6, whichever the bank the cylinder on driver's side near the turbo is. Voltages are all over the place whereas the other injector connectors seem to be putting out more of a constant voltage. Tracing it back to the ecm will be fun.😒

 

[Steve Q]

1 hour ago, richy_p said:

Ok, so I believe it to be injector 5 or 6, whichever the bank the cylinder on driver's side near the turbo is. Voltages are all over the place whereas the other injector connectors seem to be putting out more of a constant voltage. Tracing it back to the ecm will be fun.😒

 

Glad you've narrowed it down 🙂