Engine Management Light starts to flash after sharp left hand turn

[Dave OB]

Hi All

I have an issue with my 2010 A4 Avant 2.0 TDI and wondered if anyone could help.

After make a sharp left turn my engine management light starts flashing and continues to flash until I restart the engine. The car does not go into limp mode and doesn't appear to be suffering any ill effects.

This ONLY happens when I make a sharp left turn, I have never managed to get the light to flash by making a sharp right turn.

It happens when the ESP is on or off.

On full lock pulling off slowly it doesn't flash.

Pulling out left at a junction causes the light to flash.

I have not had the car checked for fault codes and I haven't got the kit to check this myself.


Any help and suggestions would be greatly appreciated.


Cheers Dave

 

[evans1089]

Where are you located?

 

[Dave OB]

Where are you located?

Lichfield in Staffordshire

 

[Zafi]

Get the fault code read, then you know where to look.

Could be something like a dangling wire touching earth.....

 

[rum4mo]

Sorry for taking so long to reply, but I've just had an thought:- has the car been lowered? Mainly, if so, then there is a real danger of some wiring fouling and maybe shorting or touching earth (as mentioned earlier), I think that you either need to bodge up some extra support clips after fixing the damaged wiring, or spend a bit of cash buying a fix in from US - though I'd doubt if that will be cost effective. Maybe have a look on some USA based Audi owners sites.

 

[NVM]

My guess is water ingress!

 

[Dave OB]

Hi All

Sorry for taking so long to respond, I have been on holiday for a few weeks and have been waiting for my diag cable to turn up. I now have the cable and have ran a scan and it found the following 7 fault codes for the engine control module;

7 Faults Found:
5380 - Valve for Air Filter Bypass Flap (N275)
P1016 00 [047] - Open Circuit
Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 254
Mileage: 95105 km
Date: 2014.01.26
Time: 17:14:10

5382 - Valve for Air Filter Bypass Flap (N275)
P1015 00 [032] - Short to Ground
Intermittent - Not Confirmed - Tested Since Memory Clear
5266 - Exhaust Gas Temperature Sensor 4 Bank 1
P2470 00 [040] - Short to Ground
Intermittent - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 32
Mileage: 102882 km
Date: 2014.07.28
Time: 18:08:29

5120 - Oxygen (Lambda) Sensor B1 S1
P2196 00 [096] - Signal too High (Rich)
Intermittent - Not Confirmed - Tested Since Memory Clear
10085 - Neutral Gear Sensor
P15A1 00 [096] - Implausible Signal
Intermittent - Not Confirmed - Tested Since Memory Clear
10086 - Neutral Gear Sensor
P15A1 00 [096] - Implausible Signal
Intermittent - Not Confirmed - Tested Since Memory Clear
10087 - Neutral Gear Sensor
P15A1 00 [032] - Implausible Signal
Intermittent - Not Confirmed - Tested Since Memory Clear


I have cleared all these faults and scanned again before starting the engine or driving the car and this fault code comes back straight away;

5380 - Valve for Air Filter Bypass Flap (N275)
P1016 00 [039] - Open Circuit
Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Mileage: 105495 km
Date: 2014.08.26
Time: 10:19:30


I then went for a drive, went round a sharp left hand corner and my engine management light came on as usual. Scanned when I got home and this fault appeared;

5266 - Exhaust Gas Temperature Sensor 4 Bank 1
P2470 00 [167] - Short to Ground
MIL ON - Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Mileage: 105496 km
Date: 2014.08.26
Time: 10:22:41


Not looked into either of the faults yet but it appears than the "5266 - Exhaust Gas Temperature Sensor 4 Bank 1" is what is causing my engine management light to come on. Not really what I expected.