Q: What does it mean if cylinder 2 and 6 are not firing and it is not the plug, plug wire, or coil because they have all been changed.

asked by on October 14, 2016

The van was really missing bad, would not pull hills unless you gained speed first. If you got over 60-70 miles per hour if will almost cut completely out. We put the hand held computer tester on the van an code came up as miss fire on #2. We changes the plug and plug wire, cleared code and ran code reader again. then code came up as miss fire on #2 and #6 cylinder. We have changed the plugs, plug wires, and the coil. what else could it be.,

My car has 227000 miles.
My car has an automatic transmission.

Engine is misfiring Inspection $94.99 - $114.99 Get a Quote

Hello. If the misfires are continuing to occur and the ignition parts are good then it may be a faulty fuel injector or an issue within the engine. I usually do a compression test first. By doing this I would know if the problem was internal such as a valve seat failure. If the compression test comes back fine then I test the injectors on those cylinder to make sure that are fine. If those happen to be good also then there is more than likely a problem within the circuit that is causing this and further diagnosis will need to be dine. If you need to have this misfire fixed, consider YourMechanic, as a certified mechanic can come to your home or office to diagnose and repair this.

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


Experienced Mechanic?

Earn up to $70/hr

What others are asking

How do you refuel the Honda Civic?
Your car needs gas for the engine to operate. You’ll need to fill the gas tank periodically, and knowing how to open the tank is important. Your car’s tank is protected by a locking fuel door. This prevents thieves from...
Car jerking and dying.
Hi. Your car is equipped with a torque converter clutch that allows the converter to lock to the speed of the flywheel which increases fuel efficiency. This is only to occur at highway speeds when the vehicle is cruising. The...
Belt noises pulley wobbles
Hey there, thanks for writing in about your 2005 Pontiac GTO. Worn idler pulleys (https://www.yourmechanic.com/services/idler-pulley-replacement) or accessory components along the belt drive system may make noise as a sign the bearings are failing (https://www.yourmechanic.com/services/wheel-bearings-replacement). As far as the brands, stick...
Oil is leaking onto the spark plugs
Oil on the spark plugs can come from a failed seal, or it can come from a failed valve cover gasket (https://www.yourmechanic.com/services/valve-cover-gasket-replacement). The spark plug well seals you are referring to can be changed. It is a slightly lengthy process...
How long can I drive with a bad wheel bearing? How much does it cost to fix, not including labor?
Wheel bearing noise will always be dependent on vehicle speed, meaning as you speed up or slow down the noise should change frequency or loudness. Cornering may affect the noise from a damaged front wheel bearing and is usually more...
Does a VW Passat 2003 have a front motor mount?
Hi there. There is no directly front motor mount, but there is a mid mount extended to the rear of the engine and a side mount just under the crank area to the frame. There is also a mount that...
Hello
Hi there. Smoke coming from the exhaust pipe is due to several different mechanical issues; ranging from damaged piston rings and valve guides in the cylinder head (blue smoke), blown head gaskets or coolant inside the oil galley's (typically white...
Looking for LED lights
The lights can be purchased from many online sources, such as Amazon or eBay. You should be careful though. There are a few problems with replacing the lights with LED lights. LED lights require much less electricity to run and...
Gas meter always says full won't allow me to put full up on gas what can I do??
Hi There, It sounds like you may have two separate issues going on here. Your fuel tank sending unit (https://www.yourmechanic.com/services/fuel-gauge-sender-replacement) is a unit that monitors the fuel level in your tank. When this is not working properly, you may notice...

Related articles

P0013 OBD-II Trouble Code: B Camshaft Position - Open or Short in Oil Control Valve (OCV) (Bank 1)
P0013 code definition “B” Camshaft Position - Open or Short in Oil Control Valve (OCV) (Bank 1) What the P0013 code means...
P2258 OBD-II Trouble Code: Secondary Air Injection System Control A Circuit High
P2258 P2258 Code Definition The P2258 trouble code is a generic powertrain code related to fuel and air metering (air injection circuit). This code appears when the engine control module (ECM) detects higher voltage levels than are acceptable in the...
P0254 OBD-II Trouble Code: Injection Pump Fuel Metering Control “A” High (Cam/Rotor/Injector)
The The P0254 Trouble Code indicates issues with the inject pump fuel metering control “A” high (cam/rotor/injector). What the P0254 code means When this code appears, it means that the powertrain control module has found an issue with the signal...