Check engine light on? The scan is free.
We read the trouble codes for free, explain in plain words what they mean and how urgent it is, and give you a written estimate before any testing or repair.
- Free computer scan**
- Written estimate before any work
- 24-month / 24,000-mile warranty†
- Se habla español
Check Engine Light Diagnostics at NewGen Auto Repair
A steady check engine light means the car's computer has found a problem — anything from a loose gas cap to a failing sensor. A flashing light usually means a misfire that can damage the catalytic converter: slow down and get it checked as soon as possible.
A code tells us where to look, not always what part to replace. When deeper testing is needed, we explain why and quote it in writing first — as California law requires.
What's included
- Free computer scan and code reading**
- Explanation of the codes in plain words
- Misfires, O2 sensors, catalytic converter, EVAP leaks
- Smoke testing and electrical testing when needed
- Clearing codes after the repair
- Re-check that the light stays off
Other services
Brake RepairOil Change & MaintenanceA/C RepairEngine RepairTransmission RepairElectrical & BatteryExtended Warranty RepairCollision Repair
- Send a few photos of the damage — 2 minutes
- We reply the same day during shop hours
- We handle the claim with your insurance
Helpful reading
Engine Knocking or Ticking Noise: Causes and What to Do
Engines hum. They shouldn't knock. A new noise from under the hood deserves a quick check before it becomes an expensive one.…
Read more →EngineCheck Engine Light On? What It Means and What to Do
The check engine light can mean anything from a loose gas cap to a misfire that's damaging your catalytic converter. Here's how to tell.…
Read more →EngineSmoke Coming From Under the Hood: What the Color Means
Smoke always deserves attention. Its color and smell give a good first clue.…
Read more →Check Engine Light FAQ
Is the diagnostic really free?
Yes — the computer scan and code reading are free, no purchase required. Deeper testing is quoted in writing first and done only with your approval.
Can I keep driving with the check engine light on?
If it's steady and the car drives normally, usually yes for a short time — but get it checked soon. If it's flashing, reduce speed and have it checked right away.
Will the light go off by itself?
Sometimes, if the problem was temporary (like a loose gas cap). If the cause is still there, the light comes back.
5.0 on Google
“They helped me after my accident, worked with the insurance claim, and the car came out looking excellent.”
“I recently had my BMW 528i serviced at NewGen Auto Repair — one of the best experiences I've had with an auto repair shop in Orange County.”
“Professional and honest auto body shop. Great paint quality, excellent customer service, and very helpful with insurance claims from start to finish.”
“I had some issues with electric and my air suspension wasn't holding air — finally got it fixed very professionally.”
“They prepared my car for a long road trip and checked everything carefully. Professional, fast, and very helpful.”
“Great people, quick and efficient. They guided me through the whole process.”
Visit our shop in Santa Ana
818 E Walnut St, Santa Ana, CA 92701. Free estimates — walk in during shop hours or send photos online.
Visit the shop
- Address
- 818 E Walnut St, Santa Ana, CA 92701
- Phone
- (820) 888-2888
- Mon – Fri
- 9 AM – 6 PM
- Saturday
- 10 AM – 4 PM
- Sunday
- Closed
- Accident help & towing
- 24/7
*Deductible assistance of up to $1,000 is available only on insurance claims where your insurance company has approved a repair amount of $8,000 or more and the repair is performed in accordance with that insurer-approved estimate (California Penal Code § 551(b)). We never increase a repair estimate to cover a deductible. Not available on customer-pay repairs. Ask us for details before your repair begins.
**Free computer diagnostic scan: we read and explain your vehicle's trouble codes at no charge, no purchase required. If the problem needs in-depth testing (labor), we give you a written estimate and get your approval before any paid work, as California law requires.
†Warranty: limited lifetime warranty on our collision, body and paint workmanship for as long as you own the vehicle; 24 months / 24,000 miles (whichever comes first) on mechanical repairs, parts and labor. Not covered: normal wear, new damage, abuse or neglect, rust or chips from road debris, and customer-supplied parts. Warranty terms are written on your invoice.
‡Accident towing: you pay nothing out of pocket when you have collision coverage or the other driver is at fault — we pay the tow and bill the insurance company. If no insurance covers the tow, we tell you the price before the truck is sent.