How To Fix P0300 Random Misfire Codes In Your Car




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Cliff Moses: Hey Scotty, After further inspection I saw that there was a 20 amp fuse blown in the engine compartment fuse box that said it was to the 02 sensor, I replaced the fuse and then tested it again with the fuse tester and it shows nothing going to that fuse, it didn't light up and all the other ones did, the code reader didn't give me any codes for that but it gave me those code p0300 random misfire and p0303, p0305, would this be a problem with the sensor and how can I tell what sensor to replace. 1999 Dodge Dakota 3.9 Lt

stormislay: My car is misfiring and has a flashing check engine light and fault codes P0300 and P0303. I changed the ignition coil pack and spark plugs but it didn't help now a mechanic is telling me they think the timing chain has slipped causing the problem though before the misfiring the timing chain wasn't rattling. Any help would be welcomed?

Nunya Bidness: thanks for the help! i was getting jerked around town by guys who just thought they could milk me financially until i mooed.

Sachimo411: Scotty is the best!!! His no nonsense and straight forward approach to the trouble elimination process is just what you need to hear... and not a lot of wasted words. This guy truly understands his craft!!!

Cody Terrill: Scotty, I had one instance where I was coming up with a P0300 code, but it would happen in frequent spurts, usually in rain. I checked everything! Distributor caps, battery, alternator, and even my distributor cap. But when I pulled my distributor cap, there was moisture in it! So I replaced the gasket and the cap, threw in a little dialectric grease, and boom, good as new.

Miguel Rodriguez: An egr that's stuck can also cause a p0300

EMurder1980: So I have a code 300 no spark from the coil packs could the icm be bad can a code 300 be cased by a bad icm?

whooops61: I love this guy!!!

Laclair Stevenson: your the crap scotty

Levi Grafton: Sooo I pulled my spark plug boots out of my eclipse and in the first one there's oil, but in the others it's clean, I was gonna try to check or change my spark plugs but even with a deep well socket I couldn't get them out.

Tiffany Brambo: Awesome video! I have P0300 & P0052 coming up on my 2004 Dodge Ram 1500 hemi. All spark plugs were replaced 3 years ago and all 4 O2 sensors were replaced this month. What would cause both of those readings and a rough idle? It has over 145k miles on it.

berkmanyt: Great Scotty…..thank you walt

Morningside Sanitarium: +Scotty Kilmer I have a P0300 code and trying to find the cause. I'm wondering if this will narrow it down....it misfires constantly. But if I turn off the heat or A/C, it goes away. Battery maybe? or something else??

C 19: I have a 1999 beetle 2.0 - I put new up and down stream sensor/new battery/new catalytic converter and it keeps giving me Code  p0300 multiple cylinder misfire /cylinder 1 and cylinder 3.has a new battery also. have a whore(hose) that comes from the secondary air pump to the air filter box that keeps getting lose any ideas ?

Robert Venturino: hey Scotty its Bobby again I took your advice and change. Those plugs and wires and that repaired the misfire thank you so much you got to be the closest thing to a saint thank you again bye bye

A D: Scotty, How could battery cause it, 14.2 v is 14.2 v from alternator???

Robert Venturino: hi Scotty I have a 1999 Toyota Camry with only the number 1 cylinder firing the other three are giving misfire codes and the check engine light was flashing I replaced the fuel pump but that didn't help do you have any idea what my next step should be also my name is Bobby sorry I forgot to introduce myself I appreciate any advice you can give me thank you

Dallas Stevens: lmbo u funny and the man! lol

Jashua Cruz: Hello, i have a lancer 05, and it showed me the p0300 code.
When I crank it, it doesnt start right away. It almost seems it wint start at all, sometime it doesnt start.
When the car is running it looses power, sometimes it goes like dead, it doesnt have power when you press the gas pedal. Also the engine sometimes sounds like diferent, like if it doesnt have full conpresion.
Sparks donesnt have 1 month old.
What else could it be?
Coils? Spark wires? Injectors?

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