Turbo underboost/limp mode/ Flashing glowplug. Resets upon restarting

[CCRS]

My a4 b8 avant goes into limp mode at 2100 rpm, the glow plug light flashes and occasionally the engine management light comes on also. Diagnostic shows underboost fault.

It always resets after restarting the engine.

Is this terminal turbo signs or perhaps just a boost sensor?

Help gratefully received!

[CCRS]

On 7/9/2022 at 9:50 PM, CCRS said:

My a4 b8 avant goes into limp mode at 2100 rpm, the glow plug light flashes and occasionally the engine management light comes on also. Diagnostic shows underboost fault.

It always resets after restarting the engine.

Is this terminal turbo signs or perhaps just a boost sensor?

Help gratefully received!

FAULT CODE -0299-(Turbo underboost)

Kicks in @ 2100rpm -3000rpm

Power reduction and glow plug lamp flashes

Condition usually resets upon ignition reset..

Sometimes needs OBD to perform fault reset.

POSSIBLE BOOST SENSOR? or TURBO FAULTY?

 

[Steve Q]

Could be a leaking pipe. Worth considering before changing the turbo. 

[ThomasG]

I had this, recently. Must be wear and tear: 

 

 

[CCRS]

On 7/12/2022 at 12:08 PM, Steve Q said:

Could be a leaking pipe. Worth considering before changing the turbo. 

Thanks sir..I appreciate your input. I will investigate that forthwith. 🙂

 

[Steve Q]

3 hours ago, CCRS said:

Thanks sir..I appreciate your input. I will investigate that forthwith. 🙂

 

No probs at all 🙂