Is Your Check Engine Light On? Find Out What It Means

Scotty Kilmer, mechanic for the last 43 years, shows you what it means if your car's check engine light comes on. Visit Scottykilmer.com for answers to all your car questions.

Category:

Autos & Vehicles

Tags:

• Check
• engine
• light
• on
• meaning
• trouble
• code
• scan
• tool
• mechani
• advice
• Scotty

[gmcarfreak]

Scotty, on a 98 mazda protege lx 1.5 i got a code P0106 , i dont understand the code? how can i fix that? thank u for your time sir

[scottykilmer]

@gmcarfreak that's the code for map sensor range problem. Either the sensor is bad, the wiring is bad, or you have a vacuum leak on the intake system causing that. Often vacuum leaks

[suddnstar]

I have an evaporative emissions problem with my vehicle, I took off the EGR valve to clean it out, and I noticed that one of the bolts is missing. Do you think that this could be the cause of the check engine light that I have on?

[scottykilmer]

@suddnstar only if it causes leakage in the system, often one bolt will hold em down fine.

[arubin22]

Hey Scotty, I'm trying to do my friend a favor and fix his 97 Altima that has the light on and p0171 in the computer. Now, I understand that this code could be a bunch of things from a bad o2 sensor to a vacuum leak to a dirty maf sensor, ect. But this seems to be a pretty common code for this car. I was wondering if you had any experience with this and if maybe you could give me some tips on what might be a common issue with this code on this vehicle.

[scottykilmer]

@arubin22 you've already figured out some of the possibilities, so start checking them. You do need a lot of tools and scan computers to analyze that stuff though. Scotty

[scottykilmer]

@XenomorphLV426 Hey, I'm a married man for the last 32 years. Scotty

[scottykilmer]

@Ji99i3 That means the computer found a problem, and now it has gone away, so don't worry about it. Scotty

[blarson12]

This guys a hoot. Its like he's a recovering redneck or somethin.

[Igentenos]

Scotty, 2001 Honda Accord EX alright then one day I started it give some gas and it wouldnt move. When I press gas pedal further than usual it hesitantly goes. Does this at every stop. Driving home Engine Light came on. Took it to local garage. They said locked up rear caliper and metal to metal. New caliper + pads and I drive off and it's doing the same thing. Driving @ 30mph RPM bouncing from 1500-2000. Plus break pedal goes almost to floor now. Is my tranny going out or is this ABS?

[jw200]

Scotty, master. I have a 1997 Dodge Avenger, with 2.0 DOHC engine.

Sometimes the check engine light comes up and then disappears, then again comes up. And disappears again. Last time i have read, then the code was: P1494.

But why my Dodge flashes the light sometimes? It doesn't flash like in your video but just comes up and goes away, pretty much randomly.

Something is "dying" there and Dodge tries to tell me that?

Im not sure if the code is same always. I don't have the reader. TIA

[scottykilmer]

@Niteguy705 realize that the computer software in most cars isn't that great, so if you have two misfiring computer codes, odds are they may all be misifiring and the computer just counted the ones that missed the most. Scotty