2015 Honda Accord: misfire or rough idle

Filed May 11, 2026 · Fuel system · CA

I was driving down the road and when i tried to hit the throttle to speed up a little suddenly the car just started misfiring randomly with zero warning beforehand. I tried to hit the throttle a couple more times but it kept misfiring and then the engine light, tpms light, traction control light and a couple other lights all lit up and i immediately had to pull over to the side of the road because it was extremely dangerous. i will also add that i had just got off the freeway maybe two minutes prior and it would've been a completely different story if that had happen then. I have an OBD scanner in my car and i immediately pulled it out to check what the codes were which it was a single code all around P0087. The high pressure fuel pump had completely died in the middle of me driving and was not even allowing a test when i took it in for a diagnostic. i replaced the high pressure fuel pump and it completely resolved the car issues and the codes went away immediately. i still have the faulty pump in my possession to. be inspected by someone if needed. the only reason a crash or something extremely tragic didn't happen is because it was later at night and the cars behind me happen to be a decent enough distance for me to be able to get over to put my car in a safer position to not obstruct the road and get a tow truck to assist me.

Filed Dec 23, 2025 · Engine, Fuel system · 164,040 miles · FL

The contact owns a 2015 Honda Accord. The contact’s son stated that while driving at an undisclosed speed, the vehicle stalled and failed to exceed 50 MPH. The check engine warning light was illuminated. The vehicle was able to restart; however, the failure persisted. The vehicle was taken to the dealer, where it was diagnosed and determined that there was a misfire in cylinder #2, causing engine failure, and the contact was informed that the engine needed to be replaced. The vehicle was not repaired. The vehicle was then taken to an independent mechanic, where it was diagnosed that the fuel pump had failed and needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 164,040.

Filed Jul 6, 2020 · Electrical, Fuel system · NC

I've recently noticed small oil spots on my garage floor. My car does not accelerate smoothly and has also started to stall when I'm initially starting it. The stalling seems to be worse when the car has cooled off but once it finally starts, it is running rough until I hit a stable speed. It also seems to run rougher when making turns (which is typically when I'm attempting to accelerate). It has been happening for the past 3-6 months, although inconsistent. I've also had a new battery every year since I've owned this vehicle despite recalls on battery parts/sensors.

Filed Apr 21, 2016 · Engine, Fuel system · 5,800 miles · MN

Engine misfires at highway speeds with the tachometer surging 1,000 RPM's with each misfire. You cannot maintain your speed and therefore are not able to safely drive on the highway. Took it to a dealer who stated someone else had recently been in with the same problem, but could not recreate the probelm on a test drive. They reset the computer to factory settings, but didn't hear back yet from the owner if it resolved the issue. They didn't reset my car's computer, however. My problem appears to match that of the federal safety agency id number 10838521.

Filed Feb 25, 2016 · Engine, Transmission · 9,800 miles · OH

Engine misfires at 50-60 MPH with the tachometer surging from 1400 RPM to 2500 RPM with each misfire. You cannot maintain your speed and therefore are not able to safely drive on the highway. Took it to the dealer who stated that honda has been aware of this issue for some time but does not have a fix for it yet.