Q: yellow engine light with p0300,p0302,p0304 codes.
yellow engine light with p0300,p0302,p0304 codes. changed plugs ,which looked good. swapped coils, 1 to 3 and 2 to 4. got the same codes for 2 and 4 cylinders,after clearing the codes There are a number of things that I could start changing from what I have read but would rather get some sound advice. Thanks
My car has 74490 miles.
My car has a manual transmission.
The first thing these codes show is cylinders 2 and 4 are misfiring. You swapped coils around but notice you moved coils 2 and 4 with each other. If these were misfiring then swapping these coils will not move the codes. You need to replace these two coils with cylinders 1 and 3 to see if misfire moves. If it does then replace coils. If it does not then do a compression and vacuum check on these two cylinders.
The statements expressed above are only for informational purposes and should be independently verified. Please see our
terms of service
for more details
Get an instant quote for your car
Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing
What others are asking
Battery dies over and over, works when jumped
If your battery is not working properly, it could cause a strain on the alternator. On the other hand, if the battery cable ends that connect to the battery are not making good contact to the battery, it could cause...
How do I flash the high beams?
You can quickly flash the high beam headlights to get the attention of another driver or a pedestrian. To do so, pull the turn signal lever (which protrudes from the left side of the steering column) towards you, and immediately...
A fuse blows when power seats are used
Hello there, while this is not the most common issue, it does happen from time to time. There is usually 2 fuses per seat depending on opinions and if the vehicle has memory seats. The seats use a separate switch...
Check engine light still on after repair. 2006 Infiniti G35
Hello. If the Check Engine Light remained on after the battery was plugged in, then it may be possible that the issue is with the wiring. Faulty wiring or a bad connector to the cam position sensor (https://www.yourmechanic.com/services/camshaft-position-sensor-replacement) keeping the...
Check Engine Light is on with trouble code P0014.
Hello, this over-advanced camshaft timing is a significant problem, and should be checked out ASAP by a professional mechanic. Trouble code P0014 (https://www.yourmechanic.com/article/p0014-obd-ii-trouble-code-camshaft-position-b-timing-over-advanced-or-system-performance-bank-1-by-jay-safford) indicates a problem probably due to worn timing chain guides, a stretched timing chain, or a weak...
car vibrates on low speeds around 30-40mph
Hello. I suspect this accident damaged a wheel or tire, which is causing the vibration you are experiencing. Bent wheels or a damaged tire which has tread separation are the likely problem. If you jack up the car, carefully blocking...
what are the signs that i an engine mount is breaking?
The most noticeable sign of a failing motor mount is a very strong vibration that may increase a bit as the engine speed increases. As you may know, the motor mounts (https://www.yourmechanic.com/services/engine-mount-replacement) support the motor inside the car's chassis and...
Check Engine code p0016
Hi There, As you know, code P0016 relates to the camshaft position sensor. It sounds like the sensor may not have been replaced or is still producing the same problems that one typically will produce when it is not working...
How do I turn on the passenger air bag in a 2008 Chevy equinox?
Hi There, The airbag system is designed to come on as it senses the proper amount of weight in the seat. If there is nothing sitting in the seat heavy enough to trigger the sensor, it will no turn on....
Related articles
A Buyer’s Guide to the 2009 Mazda Tribute Hybrid
2009 2009 marked the end of the very short life of the Mazda Tribute Hybrid. All told, the automaker produced fewer than 700 models, and it was ultimately retired well before the Tribute itself ceased production in 2011. For the...
How to Get MINI Dealership Certified
Mini car dealerships offer automotive technician jobs to mechanics who are certified through Mini's Service Technician Education Program.
Understanding Mini Service Indicator Lights
Car symbols, or dashboard lights, are a car service reminder. The Mini condition-based maintenance system tells you when your car needs service.
Browse other content
Cities
Services