- 22 August 2026
- Guides and Diagnostics
- Posted by MasterTuning
- Comments Off on Dirty EGR valve: symptoms, cleaning and when to replace it
Dirty or stuck EGR: symptoms (rough idle, smoke, loss of power), cleaning or replacement and what the law says. MasterTuning diagnosis.
- 22 August 2026
- Guides and Diagnostics
- Posted by MasterTuning
- Comments Off on Hard cold starting: causes on diesel and petrol
The car struggles to start when cold: causes (glow plugs, battery, fuel pressure, injectors) and how to find them. MasterTuning diagnosis.
- 22 August 2026
- Guides and Diagnostics
- Posted by MasterTuning
- Comments Off on Turbo whistle: when it is normal and when it is a fault
Whistle or whine from the turbo: how to tell the normal noise from a worn bearing or an air leak. MasterTuning checks and solutions.
- 22 August 2026
- Guides and Diagnostics
- Posted by MasterTuning
- Comments Off on Vibration at idle: shaking engine, causes and fixes
The engine vibrates at idle: causes (engine mounts, injectors, spark plugs, EGR) and how to tell them apart. Professional diagnosis by MasterTuning.
- 22 August 2026
- Guides and Diagnostics
- Posted by MasterTuning
- Comments Off on Jerking under acceleration: why the car hesitates
Jerking, hesitation and flat spots under acceleration: causes on diesel and petrol (injection, ignition, turbo, EGR) and MasterTuning diagnosis.
- 22 August 2026
- Guides and Diagnostics
- Posted by MasterTuning
- Comments Off on The car cuts out while driving: causes and what to do
The engine cuts out while you are driving: electrical and fuel supply causes, what to do safely and how the fault is found. MasterTuning.
- 22 August 2026
- Guides and Diagnostics
- Posted by MasterTuning
- Comments Off on Car won’t start but the starter turns: causes and solutions
The starter turns but the car will not start: causes on diesel and petrol (fuel, immobiliser, crank sensor, glow plugs) and MasterTuning diagnosis.
- 22 August 2026
- Guides and Diagnostics
- Posted by MasterTuning
- Comments Off on Sudden increase in fuel consumption: why and what to check
The car uses more fuel: mechanical and electronic causes of increased consumption (lambda sensor, injectors, DPF, tyres) and MasterTuning checks.
- 22 August 2026
- Guides and Diagnostics
- Posted by MasterTuning
- Comments Off on Limp mode: what it is and how to get out of it
Car in limp mode: what it means, which faults trigger it and how it is really fixed. Professional diagnosis by MasterTuning.
- 22 August 2026
- Guides and Diagnostics
- Posted by MasterTuning
- Comments Off on Sudden loss of power: the most common causes
The car has no pull any more: causes of sudden loss of power on diesel and petrol (turbo, DPF, injection, sensors) and MasterTuning diagnosis.

