01
EGR Fault Code Diagnosis
We read and interpret EGR-related fault codes in context, using live data to understand whether the issue is mechanical, electrical, or software-related.
EGR System Solutions
Hesitation, rough running, and warning lights often trace back to one component - we find the fault and fix it properly.
What We Do
Precise EGR diagnosis to eliminate hesitation and restore engine health.
The Exhaust Gas Recirculation system plays a critical role in managing emissions on modern diesel and petrol engines - but it is also one of the most common sources of running problems. Carbon buildup, valve failure, and sensor faults can all cause hesitation, rough idling, power loss, and persistent warning lights.
At Tune It Scotland, we carry out thorough EGR system diagnostics using live data and professional scan tools to identify exactly where the fault lies - and carry out the right solution to restore smooth, efficient engine operation.
Services Offered
From fault identification to lasting EGR resolution
We cover every aspect of EGR diagnosis and correction, tackling the actual fault rather than masking it with a code clear.
02
EGR Valve Assessment
We assess EGR valve operation - checking for carbon fouling, stuck valves, or mechanical failure affecting flow control.
03
EGR Cooler Inspection
We inspect the EGR cooler for blockages or leaks that can cause overheating, white smoke, or coolant contamination.
04
Carbon Deposit Assessment
Significant carbon buildup in the EGR circuit is identified and flagged, with recommendations for appropriate cleaning or component replacement.
05
Post-Fix Verification & Live Data Check
After any EGR work, we verify correct valve operation and sensor readings through live data monitoring before clearing codes and returning the vehicle.
How We Work
Methodical diagnosis before any solution is recommended.
EGR problems vary widely in cause and severity. Our structured approach ensures we correctly identify the fault before advising on the most appropriate fix.
01
Scan
Full system scan with live data capture - reading EGR valve position, flow values, and associated sensor data to map the problem accurately.
02
Inspect
Physical inspection of the EGR valve, cooler, and associated pipework to identify carbon fouling, mechanical faults, or signs of failure.
03
Resolve
We carry out the correct repair or recalibration - advising honestly on the most effective and cost-efficient solution for your vehicle.
04
Confirm
Post-work verification through live monitoring confirms the EGR system is operating correctly and fault codes are legitimately resolved.
Engine hesitation or EGR warning light?
Book an EGR diagnostic with Tune It Scotland - honest, professional, and mobile or workshop-based across Scotland.
Other Services
All Services
AdBlue / SCR
AdBlue errors and SCR system faults can put your vehicle into limp mode fast - we diagnose and resolve them before they stop you driving.
- AdBlue System Fault Diagnosis
- NOx Sensor Testing
- SCR Catalyst Assessment
- AdBlue Dosing System Check
ECU Diagnostics
Warning lights and unexplained faults need more than a code reader - we use OEM-level tools and real expertise to find what is actually wrong.
- Full System ECU Scan
- Live Data Analysis
- Sensor Testing & Fault Tracing
- Injector & Fuelling Diagnostics
Vehicle Diagnostics
Fast, accurate fault finding for any warning light, performance issue, or unexplained problem - using professional tools, not guesswork.
- Multi-System Fault Code Scan
- Live Data Capture & Interpretation
- Warning Light Investigation
- Pre-MOT Diagnostic Check
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