If Tuning Goes Wrong

If a vehicle develops a problem after tuning, stay calm and gather evidence. Many issues are caused by an underlying fault that appears when the vehicle is asked to work harder, but poor calibration or poor process can also cause problems.

Stop if there are serious symptoms

Stop driving if the vehicle is making unusual noises, smoking heavily, overheating, losing oil pressure, showing dangerous warning lights, or repeatedly entering limp mode. Continuing to drive can make evidence harder to read and damage more expensive.

Write down what happened

Record the date, mileage, symptoms, warning lights, fault codes, fuel used, weather, driving conditions and what work was carried out. Keep invoices, dyno graphs, messages and screenshots.

Contact the tuner

Give the tuner a fair chance to inspect the vehicle and explain what has happened. Keep communication factual and written where possible. Ask for the original file and a written summary of any changes made.

Get independent evidence

If trust has broken down, consider an independent diagnostic report before authorising major repairs. A clear report is usually more useful than a dispute based only on opinion.

Leave a careful review

Reviews should be factual. Explain what was booked, what happened, how the business responded, and what evidence exists. Avoid guessing at causes unless a qualified person has confirmed them.