Engine Diagnostics and Fault Finding
Ideal for cars with an active warning light, rough idling, or intermittent power loss. We plug into your vehicle onboard systems, read live data streams, and verify physical wiring before suggesting parts. You get a clear explanation of what failed and how to fix it.
What is included
- ✓Full system diagnostic scan for trouble codes
- ✓Live sensor data review under operating temperature
- ✓Wiring loom and plug pin physical check
- ✓Actuator function and valve cycle tests
- ✓Fuel pressure and vacuum leak verification
- ✓Printed fault summary report
Book your vehicle in
Tell us what your car needs and our lead mechanic will confirm your slot and give you an initial price estimate.
Questions about this service
Does the diagnostic fee cover the repair as well?
The fee covers the testing time and code readout. Any needed replacement parts and labour are quoted separately.
Can you just turn off the warning light for me?
We can clear codes, but if the underlying issue remains unaddressed, the vehicle computer will turn it right back on.
Do you handle diesel particulate and emissions errors?
Yes, we read pressure differential values, soot loading percentages, and regeneration history on diesel systems.
How your repair works
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1
Scan and error log retrieval
We plug in our diagnostic hardware to pull active, pending, and historic trouble codes from the control units.
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2
Live data confirmation
We monitor sensor readouts live while running the engine to spot irregular voltages or erratic signals.
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3
Physical wiring inspection
We inspect relevant harness clips, ground wires, and vacuum pipes to rule out simple split lines or loose plugs.
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4
Report and repair recommendation
We explain exactly which component is misbehaving and quote the exact repair before touching anything else.
Our workmanship pledge
Every mechanical repair we complete comes with a twelve-month or twelve-thousand-mile warranty on labour and new components. If something does not feel right after you collect your vehicle, bring it back and we will inspect it without fuss. Pricing & payment
What local drivers say
Brought my estate car in for a major service and front brake replacement. The pedal feel is clean and firm, the bill matched the quote to the penny, and Martin took the time to show me the old discs.
David M., Bristol, GBNo dealership nonsense or upselling. They diagnosed a stubborn suspension knock that another garage missed, fixed the link rod, and had the car ready by three in the afternoon.
Sarah H., Bath, GBBooked in for fluid renewals and brake pads. Everything was completed on time, settled easily by bank transfer at the desk, and the engine feels noticeably smoother on the commute.
Graeme P., Gloucester, GBNeed a sound mechanical opinion on your car?
Send us your vehicle details or call the front desk to book a ramp slot. We will confirm your appointment and give you a sensible estimate within four hours.