Q: Engine misfire on all cylinders

asked by on March 04, 2017

I have a 2005 Honda Odyssey that I just bought a couple of days ago. The engine light has started blinking so I checked the codes it says engine misfire on all cylinders. When the van idles it sometimes revs up to a high rpm then goes back down and starts to stall. When driving it, it has a major loss of power and takes a lot of acceleration to get it to go. Spark plugs have been replaced. What could be causing this?

My car has 191000 miles.
My car has an automatic transmission.

Engine is misfiring Inspection $79.99 - $89.99 Get a Quote

The actual codes would be needed to steer you in a precise direction. Generally, global misfires are a consequence of a major fuel and/or air induction system issue. Your vehicle has individual spark plug coils so that is not likely to be the issue unless the PCM coil driver is bad but that is rare (and is the last thing to check). If the check engine light is flashing when you are presently driving the car that requires immediate repair because the misfiring that is represented by that flashing light has the potential to damage the catalytic converter which can result in additional costly repairs. Carefully check the EGR system and intake air leaks. If EGR is stuck open you can get global misfiring. Check integrity of PCV system. The fuel system, including the possibility of leaking injectors, needs to be ruled out including the mundane possibility that you have a tankful of bad gasoline. The actual fuel system pressure and output should be tested and verified against factory specifications. If you want these steps performed by a certified Mechanic, dispatched by YourMechanic right to your location, please request a misfiring diagnostic and the responding certified mechanic will get this resolved for you. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.

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

Check Engine light on

The powertrain control module (PCM) takes inputs from dozens of sensors. It then uses this information to control outputs such as fuel delivery and emissions equipment. If the PCM detects a problem anywhere in the system it will illuminate the...

Flapping sounds at average speed, steering wheel shakes

This type of situation is caused by a rotational imbalance or load variation on the tires. My recommendation would be to have the tire road force balanced and matched for least vibration. This type of balance will put the...

Car will not start, only clicks once or twice.

Hello. Clicking when you turn the key is usually a sign that there is not enough power for the starter to fully turn. If your battery is new, then that is likely not the source of the problem. I would...

I have a 2006 Honda Accord and the dash lights and radio willl sometimes go off then come right back on when I'm going about 40 mph.

The code P0685 refers to the main ECM (computer) relay has lost power. Check the main relay and see if its getting hot. A hot relay will disconnect to cool off and reconnect. If the relay is getting hot, then...

Shaking

Hi There, Depending on what speed the shaking happens and whether or not it happens when pressing the brake pedal, this may be a result of suspension components failing or possibly brakes that need to be replaced. If the shaking...

Battery Light and Brake Light Wont Go Off

Hello, thank you for writing in. Newer vehicles keep power supply to the ABS system at all times. If the supply of power is interrupted or there is an issue with the power supply the ABS warning light will illuminate....

My car won't start, the lights flickered, and at one point I heard clicking

Hi there. It definitely sounds like something is shorted electrically and not only draining the battery, but also preventing the proper operation of the other electrical components in the vehicle. This is a serious draw on the electrical system and...

The computer for my car says it's EGR flow and there is no other symptoms. What you think?

Either the EGR (Exhaust Gas Recirculation) valve is stuck open or is closed and not opening. First try removing the EGR valve and cleaning it out. Then see if the engine light goes out and the engine runs good. If...

AC not cooling.

Most of the time when the AC stops working, it is because of a leak. The refrigerant system is a sealed system that is under pressure. If the pressure sensors detect the system is low, it will keep the compressor...

Related articles

P2423 OBD-II Trouble Code: HC Adsorption Catalyst Efficiency Below Threshold Bank 1
P2423 P2423 Code Definition A P2423 code is a generic powertrain code related to emissions systems problems. In this case, the hydrocarbon adsorption and catalyst efficiency is below the allowed threshold in engine bank 1 (typically the number 1 cylinder)....
P0469 OBD-II Trouble Code: Purge Flow Sensor Circuit Intermittent
P0469 means the evaporative (fuel) system has a problem with the purge flow sensor, often due to a damaged charcoal canister or faulty flow sensor.
P0373 OBD-II Trouble Code: Timing Reference High Resolution Signal A Intermittent/Erratic Pulses
What What the P0373 code means A P0373 means that your powertrain control module (PCM) has detected an irregularity in the high resolution timing reference signal. The “A” refers the area of the system circuitry than to a particular component...