Q: Check engine light and vsa light on in 2009 Honda accord won't accelerate over 20 mph

asked by on August 25, 2017

Vsa light is on and check engine light flashing cat will not accelerate pass 20mph
My car has an automatic transmission.

Hi there. It appears that you have a severe misfire/misfires. The VSC light illuminates when the check engine light is illuminated, by default. When the check engine light flashes, this means that there is what is called a catalyst damaging misfire occurring; this is a bad thing. The catalytic converter can ultimately be damaged and require replacement if your concern is not corrected; this can be very expensive. It sounds like you may have a failing ignition coil(s). There should be stored codes that may direct you to the cylinders where the misfire is occurring and diagnosis can proceed from there. I strongly suggest having a qualified technician perform an inspection to avoid replacing unnecessary parts. Your Mechanic has several available technicians that can assist you with a (misfire inspection)[https://www.yourmechanic.com/services/engine-is-misfiring-inspection].

Was this answer helpful?
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

Get a quote

What others are asking

Car pulling to the left

Your tires and alignment need to be checked. A worn or low tire on the left can cause a pull. You can easily have your tire pressure checked. Any recent damage could also cause the pull. A qualified technician, such...

How often should I change brake fluid?

You should replace the fluid every time you do a brake job or every 3 years. The only time to get it done when not scheduled is if it get contaminated with wrong fluids.

What does the Low Oil Pressure light mean?

The Low Oil Pressure light on your dash looks like a small oil can, and it should light up under very specific circumstances. Here’s what you need to know: The light should come on briefly when you crank the...

Related articles

The Best Used Cars to Buy for Short Commutes
If If you’re lucky enough to have a short commute to work, then you need to consider different factors when buying a used car than someone with a lengthier drive (or more time stuck in traffic). Chances are good that...
The Best Used Cars to Buy If You’re Single
When When you’re buying a vehicle that needs to meet the requirements of all kinds of passengers the process can prove to be rather tricky. However, if you happen to be single, you’re the one in control, and your list...
The Best Used Cars to Buy If You Just Had a Baby
Having Having a baby will completely change your life. Your activities and hobbies will change. Your sleeping patterns will change. Chances are good that you’ll also be looking for a change in vehicles. You need to ensure that your car...