https://honda-tech.com/forums/ 2013 - 2015 Honda Accord and Inspire en Fri, 17 Apr 2026 23:21:58 GMT vBulletin 60 https://honda-tech.com/forums/images/misc/rss.jpg https://honda-tech.com/forums/ https://honda-tech.com/forums/honda-accord-2013-2015-167/2013-honda-accord-car-alarm-going-off-randomly-3383824/ Thu, 09 Apr 2026 19:45:32 GMT *2013 Honda Accord EX Sedan Manual transmission* For the past few months, intermittently, my car alarm will go off randomly while it is parked. I took it to a shop who tried a few things. It... 2013 Honda Accord EX
Sedan
Manual transmission

For the past few months, intermittently, my car alarm will go off randomly while it is parked. I took it to a shop who tried a few things. It managed to not go off for a few weeks, but now it is back to going off again.

What has been tried already with no success:

• Replaced relay box
• Replaced driver’s door latch
• Replaced hood latch assembly
• Replaced trunk latch assembly

Right now I have to disconnect my battery any time I park my car to ensure the alarm doesn't go off. Then reconnect it when I need to go somewhere. Anyone have any insight? Thanks!
]]> Honda Accord (2013 - 2015) alyssataelor https://honda-tech.com/forums/honda-accord-2013-2015-167/2013-honda-accord-car-alarm-going-off-randomly-3383824/ https://honda-tech.com/forums/honda-accord-2013-2015-167/2013-honda-accord-2-4l-%96-p0420-after-fixing-misfire-need-advice-3383808/ Tue, 07 Apr 2026 03:54:03 GMT Hey everyone so I had a severe misfire issue for a while. Ended up being a combination of a burnt exhaust valve (which I repaired) and a set of bad aftermarket injectors that were leaking and causing... Hey everyone so I had a severe misfire issue for a while. Ended up being a combination of a burnt exhaust valve (which I repaired) and a set of bad aftermarket injectors that were leaking and causing the engine to run extremely rich. The overfueling was throwing everything off and making the ECM act erratic.

Now that’s all fixed, the car runs great, smooth idle, no misfires, and revs clean!

After a 200+ mile highway drive, I got a P0420 (catalyst system efficiency below threshold B1) code. Car still runs perfectly fine with no drivability issues. The code showed up after I got it to highways speeds (60-80MPH)

I am wondering Is it likely the catalytic converter that is just contaminated from the previous rich condition and might clear up with time, or is it usually permanently damaged at that point?

Appreciate any input. I really would like to enjoy the car without seeing the check engine light on every time I get behind the wheel. ]]> Honda Accord (2013 - 2015) Major_Heat https://honda-tech.com/forums/honda-accord-2013-2015-167/2013-honda-accord-2-4l-%96-p0420-after-fixing-misfire-need-advice-3383808/ https://honda-tech.com/forums/honda-accord-2013-2015-167/misfire-after-fixing-oil-leak-3383705/ Sun, 22 Mar 2026 02:05:12 GMT Had oil leak somewhere around oil filter/VTEC valve or oil pump on a 2013 3.5l. Figured out it was the oil filter assembly removed and replaced seal now have codes P0300-303 is there anything I... Had oil leak somewhere around oil filter/VTEC valve or oil pump on a 2013 3.5l. Figured out it was the oil filter assembly removed and replaced seal now have codes P0300-303 is there anything I might need to do due to that being completely emptied of oil ]]> Honda Accord (2013 - 2015) maack https://honda-tech.com/forums/honda-accord-2013-2015-167/misfire-after-fixing-oil-leak-3383705/