Frequently Asked Questions

How much does a check engine light diagnostic cost for a 1996 Toyota Supra?

• Typical diagnostic fees range from about $80 to $150, depending on complexity and time on the lift.
• Nalley Toyota of Roswell often costs less than independent shops while providing factory-trained technicians and genuine parts, delivering immediate and long-term savings.
• If a repair follows the diagnosis, diagnostic fees are sometimes credited toward the repair when completed at our dealership.
• Warranty-covered repairs must be performed at a certified dealership to preserve coverage and ensure parts and labor are handled properly.

What is the first thing to check when the check engine light comes on?

• Start with the gas cap—ensure it’s tightened; a loose cap is a common trigger.
• Note whether the light is steady or flashing; a flashing light often indicates severe misfire and potential engine damage.
• Check for obvious issues: unusual noises, smoke, loss of power, or fluid leaks; avoid driving if severe symptoms appear.
• Bring your 1996 Toyota Supra to Nalley Toyota of Roswell for a prompt scan and expert guidance to protect long-term value and warranty coverage.

What does it mean when the check engine light comes on in a 1996 Toyota Supra?

• It signals the car’s onboard diagnostics detected a fault—anything from an emissions sensor to ignition misfires or fuel delivery issues.
• Common causes include oxygen sensor faults, catalytic converter efficiency, ignition misfires, vacuum leaks, or evap system leaks.
• Some issues are minor; others can worsen quickly. A prompt dealership diagnosis helps avoid costlier repairs later.
• Nalley Toyota of Roswell uses factory-grade scanners and technicians trained on Toyota systems to accurately diagnose and recommend cost-effective repairs.

How long does a check engine light service take?

• Initial diagnostic scans typically take 30–90 minutes, depending on code complexity and verification steps.
• Simple fixes, like tightening a gas cap or replacing a sensor, can often be completed the same day.
• More extensive repairs (ignition, catalytic converter, or major engine work) take longer; we provide accurate estimates and timelines up front.
• Nalley Toyota of Roswell prioritizes parts availability and efficient workflow so you receive fast, reliable service with long-term savings.

What is the most common reason for check engine light on a 1996 Toyota Supra?

• Worn oxygen sensors and aged catalytic converters are frequent causes, especially on older performance vehicles.
• Ignition issues—spark plugs, wires, or coils—can trigger misfire codes that illuminate the light.
• Evaporative emissions system leaks and vacuum leaks also commonly set codes on these engines.
• Our factory-trained technicians at Nalley Toyota of Roswell diagnose root causes to minimize repeated visits and reduce lifetime repair costs.