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We chat with Keith Perkins of //www.l1diagnostics.com

We chat with Keith Perkins of //www.l1diagnostics.com

The Car Doctor Podcast Jan 25, 2026 56 min
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About this episode

Keith Perkins of L1 Diagnostics shares insights into his multifaceted automotive business, which includes mobile diagnostics, a brick-and-mortar shop, and training programs. He discusses the challenges faced by shop owners, the importance of ongoing education and proper tooling, and the impact of right-to-repair legislation. Perkins emphasizes the need for technicians to utilize available resources and the role of AI in modern diagnostics. The conversation also touches on the significance of visual inspections and networking within the automotive community.

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Technical Too Afraid to Ask
Car

Porsche 959

"...ition of the Car Doctor program on award-winning 959 W-A-T-D where we have award-winning weather obser..."

The Porsche 959 is a really fast and fancy sports car made by Porsche in the late 1980s. It's special because it has cool technology that helps it grip the road better, and not many were made, which makes it a collector's item.

Company

L1 Automotive Diagnostics and Programming

"But we essentially have three businesses. We have L1 Automotive Diagnostics and Programming."

L1 Automotive Diagnostics and Programming is a business that helps people fix cars by figuring out what's wrong with them and programming their systems.

Car

Nissan Titan

"...packed up all my dyag tools in my Nissan Titan, locked my toolbox up..."

The Nissan Titan is a large truck that can carry heavy loads and is often used for work. It's known for being strong and having a lot of space inside.

Term

e-prom

"And it was a e-prom and cloning class. This is pulling modules open to repair them and clone the data because some manufacturers make the modules be a one time use."

An e-prom is a special type of computer chip that can be changed and reused. It's important in cars for storing information that helps the engine and other systems work properly.

Term

chip shortage

"So it was a chip shortage and all those things. And so we had to find ways to make use modules work in those cars."

A chip shortage happens when there aren't enough tiny computer parts called chips that cars need to work. This can cause problems like delays in making new cars and higher prices.

Brand

Honda

"...we had Honda, Hyundai, Kia, or well, Genesis wasn't a thing back then..."

Honda is a car company from Japan that makes many types of vehicles, including popular cars and motorcycles. They are known for making reliable and well-engineered vehicles.

Brand

Kia

"...we had Honda, Hyundai, Kia, or well, Genesis wasn't a thing back then..."

Kia is another car company from South Korea that makes many affordable cars. They are known for offering good value and have a reputation for reliability.

Term

right to repair legislation

"...because of the right to repair legislation, they were legislated into making this resource more widely available..."

Right to repair legislation is a law that allows people to fix their own things, like cars, by making sure they can get the information and parts they need. It helps keep repair costs down and gives people more choices.

Car

Hyundai Genesis

"...as cheaper. We had Honda, Hyundai, Kia, or well, Genesis wasn't a thing back then, but Honda, Hyundai and ..."

The Hyundai Genesis is a nice, fancy car that Hyundai started making in 2008 to compete with other luxury brands. It's known for being comfortable and having a lot of features for the price, which makes it a good choice if you want a luxury car without spending too much.

Term

brake fluid

"...they didn't have brake fluid that we use in shampoo for brake fluid, which is something I guess that if I was by the side of the road..."

Brake fluid is a special liquid that helps your car's brakes work. When you press the brake pedal, this fluid helps push the brakes to stop the car.

Term

IATN

"...things like IATN, the International Automotive Technicians Network and similar databases of fixes like that."

IATN is a website where car mechanics can connect with each other and share tips and solutions for fixing cars. It's like a community for car experts.

Term

ABS module

"...This ABS module is extremely high failure rate. Maybe go look at that data next and then prove it out with your normal diagnostic process that that is the fault."

The ABS module is part of a car's braking system that helps keep the wheels from locking up when you brake hard. It makes sure you can steer while stopping quickly.

Company

Autel Ultra S2

"For aftermarket scan tool, my current favorite is for traditional aftermarket scan tools like the Autel Ultra S2. I got it recently."

The Autel Ultra S2 is a tool that helps mechanics check what's wrong with cars. It uses smart technology to make finding problems easier and faster.

Term

matte finish

"...luxury cars, you know, luxuses and BMWs, these matte and flat finishes that they pay a lot extra for. Do you think that's a fed and if so, or if it isn't..."

A matte finish is a paint style that doesn't shine like regular paint. It looks flat and smooth, and many luxury cars use it to stand out, but it can be pricier and harder to keep looking nice.

Brand

BMW

"...luxury cars, you know, luxuses and BMWs, these matte and flat finishes that they pay a lot extra for. Do you think that's a fed and if so, or if it isn't..."

BMW is a well-known car brand from Germany that makes luxury cars. They are famous for their sporty designs and high-quality performance.

Brand

Mercedes

"...I remember the first time I saw Mercedes with the flat finish."

Mercedes is a famous car brand from Germany that makes luxury vehicles. They are known for their high-quality cars that often include the latest technology and safety features.

Car

BMW 850

"look at some of the, you know, fancy cars in the 80s. BMW 850, Ferrari Testerosa, those cars now look like, you know, 80s hairstyles."

The BMW 850 is a fancy sports car that was made in the 1990s. It's known for being stylish and fast.

Car

Ferrari Testarossa

"look at some of the, you know, fancy cars in the 80s. BMW 850, Ferrari Testerosa, those cars now look like, you know, 80s hairstyles."

The Ferrari Testarossa is a famous sports car from the 1980s. It's known for its unique look and speed.

Car

Mercedes-Benz GLK 350

"...A 2011 GLK Mercedes GLK 350 and the power steering. The fluid seems to be down just a little..."

The Mercedes-Benz GLK 350 is a small luxury SUV that offers a nice balance of comfort and performance. It's a good option if you're looking for a stylish and reliable vehicle.

Term

automatic transmission fluid

"So I was going to put in, well, it ain't like the old days, just grab automatic transmission fluid. It's like everything. I better check."

Automatic transmission fluid is a special oil used in cars with automatic gearboxes. It helps the car change gears smoothly and keeps the transmission parts clean and cool.

Term

CHF 1150

"...it said CHF 1150 specialized thing. So I went in the owner's manual and it said MB power steering fluid or approved on three."

CHF 1150 is a special fluid used in some cars for their power steering systems. It helps the steering work smoothly and protects the parts inside.

Term

MB power steering fluid

"...it said MB power steering fluid or approved on three."

MB power steering fluid is a type of fluid made for Mercedes-Benz cars. It's important to use the right fluid to keep the steering system working well.

Term

hydraulic oil

"It's like pentason or something like that. It's a hydraulic oil that, that they use in convertible top motors, power steering, all that kind of stuff."

Hydraulic oil is a special fluid that helps machines and car parts move smoothly. It's used in things like the motors that open and close convertible tops and in the steering system to make it easier to turn the wheel.

Term

ABS brake system

"Rust is what is the enemy of the ABS brake system. Hydraulic fluid like this mineral oils, hydraulic fluid doesn't attract moisture the same way."

ABS helps your car stop safely by preventing the wheels from locking up when you brake hard. If there is rust in the system, it can stop working properly.

Term

service position

"...in some cars, it's called the service position where if you're going to change a wiper blade, you start the wipers, put them partly up, flip them up like that."

The service position is a setting in some cars that lets you lift the windshield wipers off the glass. This is useful for changing the wipers or when it's snowy so they don't get stuck to the windshield.

Term

wiper motor

"...If you're really unlucky, it burns out a wiper motor."

The wiper motor is what makes your windshield wipers move. If too much snow or ice is on the windshield and the wipers try to clear it, the motor can get damaged and stop working.

6 cars featured

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