Engine misfire on cylinder 2 i replaced the coil and spark plugs and am still having the problem. i own a 2000 chevy prism

Most likely solution is to replace the s[ark plugs and check the ignition coils boots. The #4 cylinder plug has probably has a carbon track down the side of the porcelain part of the plug which will cause the cylinder to misfire.

Hello,
Your question lists codes p305p, and p305, which are not valid codes. Did you mean P0305? This is a diagnostic code referring to a misfire on cylinder #5. It looks like you've replaced parts that could be causing a misfire, but did not fix the problem.

A simple check to verify your misfire is not being caused by an ignition coil (the 4.8 liter engine has a coil-near-plug system, with one coil for each spark plug) is to swap the suspect coil (cylinder #5) with a coil from a different cylinder on your engine.

Cylinder #5 is the third one back from the front of the engine on the driver side of the engine. After you swap coils between a good cylinder and #5 cylinder, clear the codes and see if the misfire followed the coil- if a misfire code sets on the cylinder you moved the cylinder #5 coil to, you know the coil has a problem. That will at least help you rule out the remainder of the ignition system.

www.engine-light-help.com/generic-engine-check-light-codes.html

It means that the number 2 cylinder (passenger front of the engine) is not working. Whether its spark, fuel, or mechanical. The first thing you can check is if there is spark to the cylinder. With the engine running remove the spark plug wire from the number 2 spark plug. Listen or look for spark out of the plug wire. If there isn't than you can check for spark out of the coil pack. Do this with a test light or spark tester. With the engine off remove the number 2 spark plug wire from the coil pack. With the spark tester installed or the test light hooked to ground and placed on the #2 coil post have some body crank the engine over. If ther4e is no spark that you might have a bad coil pack. If there is spark than possibly the plug wire is bad.

You should not drive it with a misfire as you could ruin the catalytic converter which is very expensive to replace.

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

These have a lot of problems with ignition coils, so replace the spark plugs with the proper Motorcraft Spark plug, and a scanner will be needed to show which cylinders are misfiring, replace those coils. Make sure the misfiring cylinders when you take the coils out , that there isnt any water/coolant in the spark plug well.

Instead of the auto-zone trip , take it to the dealer !

I would check that spark plug, and have that coil checked or replaced. Also check for any vacuum hose leaks in the area of the cylinder.

Do you have any engines codes like P 0300. Sounds like ignition coils ,check input wires to coils if okay replace both coils.I have seen this few times

Check spark plugs and wires. Could also be defective Coil.
I recommend replacing all plugs and wires at the same time.

Hello there, I would start by removing the plug from cylinder #2 and check it condtion, I would then verify that spark is or is not getting to that cylinder. If spark is present and the plug looks good, turn the engine over and verify both of these with the plug laying on the valve cover. So if coil is good and plug is good, then it leaves fuel or fuel control issue. A faulty or clogged injector could cause this issue. Let me know how you make out, I'd be glad to assit you farther if need be. Thank you for using fixya.com