Flashing check engine light reducing car or truck gas mileage? New spark plugs and coils can help.

Does your car or truck have a flashing check engine light? Has it been getting worse gas mileage lately? It's possible those two symptoms are connected, and you can fix both with new spark plugs or ignition coils! In this video, Len explains how running rich can reduce fuel efficiency, and set off a check engine light, and what you can do to fix both!

🔧 List of tools used:
• Pocket Screwdriver
• Spark Plug Gapping Tool
• 5/16 Inch Spark Plug Socket
• Socket Driver

Check out our playlist:

⚠ DISCLAIMER:
While 1A Auto strives to make the information provided in this video as accurate as possible, it makes no claims, promises, or guarantees about the accuracy, completeness or applicability of the content. No information contained in this video shall create any expressed or implied warranty or guarantee of any particular result. All do-it-yourself projects entail some risk. It is the sole responsibility of the viewer to assume this risk. 1A Auto is not responsible or liable for any loss damage (including, but not limited to, actual, consequential, or punitive), liability, claim, or any other injury or cause related to or resulting from any information posted in this video.

[ryancurlett]

Having a stressful day, but this guy lifted my spirits and made it fun to get workin one my Honda odyssey. I so appreciate the help, you cats are heroes.

[renostubbs]

I like your energy bro, you are acknowledgeable and straight to the point, we appreciate your channel.
Thanks man!

[justeph]

This dude makes learning about auto work actually interesting/ entertaining.. Thank you for the very informative video 1A auto!

[simplelangperorock]

amazing.
common sense + technical skills = this guy.

[jw]

A catalytic converter that wasn’t cut off already ?? That’s a safe neighborhood!

[wotenuyu]

This mechanic knows what he is talking about. I wish I could find a mechanic that knows as much about a car engine that this guy😁

[williamclick]

When my cousin gave me his father's 2000 Toyota Camry LE on May 23, 2018. I bought what the owners manual said to get. I bought NGK Sparks Plugs, Wires, and Coils. The mechanic put on the Spark plugs and wires but the mechanic wouldn't put on the new coils. I still to this day don't know why. The old spark plugs that came out of the 4 cylinder engine had only been changed once. One of the spark plugs ceramic was cracked. I can't believe my cousin was driving the Camry that way. I do some of the repairs myself because I don't trust mechanics where I live. The Camry needs alot of work. It's a challenge that I want to do. Like this video thank much.

[derrillnixson]

Awesome video, very detailed info bur explained it so that ANYONE would be able to understand. He NEVER talked about anything unrelated to the subject at hand

[dirtracer]

if ur ride doesnt run smoother after new ignition parts, give the computer a few miles to learn the new parts, a lot of times computers in vehicles adapt to conditions n have to relearn new ones, u can reset the computer so it learns them faster, but most ppl dont have access to that n it figures it out on its own anyway so....jus give it a few miles, i just dealt with this exact thing on a 99 dodge 1500 5.9, it took about a week n it slowly ran better n smoother

[reccothomas]

Great job explaining every detail 👏 👍 👌. I learned something I never knew about the spark plug. Thank you very much for the tutorial 😀!

[timothyanderson-cdwx]

❤i love the video and I love how thorough you are how you talk is great and I love the visual aids there is...I will buy my car karts from your company just because I love this guy

[tijan]

Great video. Just installed a 3.9 L Range Rover V8 into my 1983 Land Rover Defender. Motor was running rich, you can smell the fuel, also seems to be missfiring with low fuel efficency and also low torque for a V8. Will check the plugs, coils and wires! Also running hot, will check that as well

[DarrenSteele-mxks]

I so enjoy these videos and he's made it a lot of fun!

[garyrohlman]

THESE PEOPLE AT 1A AUTO GIVING THESE VIDEOS ARE A THE SAME VERY GOOD AT SHOWING AND

[TC-envi]

I really enjoy and learn a lot from your videos!!!! Thanks 🙏

[Wilson-oc]

How could I not think of this before? Thank you. Great video!

[KEITHNICKLOWICZ]

wow wow wow ….. had the blinking light on my 04 Ram changed coils, injectors, new fuel pump, cam sensor all of this thinking spark plugs arnt that important . stumped i came to youtube and after seeing this said hey ill pay 100 on some nice plugs …. truck runs better then it ever had for the video and a expensive lesson learned

[zeez]

Playing about with coils as engine running risks massive electric shock

[markholyoak]

thank you for making this video it was really interesting

[marcorojas]

Hey maestro thanks again for all and keep us teaching stay safe and blessed