Firing order, coil terminal locations. Code 301 misfire #1

Re: Firing order, coil terminal locations. Code 301 misfire #1 PO301 no.1 cyl. Misfiring is it still popping? Could be caused by the following:

Plugs and Wires are they OEM oarts

Weak coil pack for that cylinder, loss of compression-burn exhaust valve- vacuum leaks, anything that causes an unusually lean fuel mixture (lean misfire), dirty fuel injectors, low fuel pressure, or even bad fuel

Have been looking for that for the last 10mins. Couldn't find it, am I dumb or am missing something

Clearly not a dumb a$$. Wise maybe :wink:

Engine Performance/Specifications. Fig 1

I believe they are the same based on the info I have. Don't feel bad about learning the site, so are we :roll:

John,
Don't worry about the points and all that BS, focus on the car. Our system has some serious defects in it. You appreciate it and that's fine for me.

Back to the car:

IF my info is right and my interpretation is right, this is how it should work.

The top three are 3-1-5 cylinders.
On the engine, the number 5 cylinder is on the passenger side closest to the firewall, then comes #3 and the front one is the #1 cylinder.

Keep in mind what Jesses said:"Weak coil pack for that cylinder, loss of compression-burn exhaust valve- vacuum leaks, anything that causes an unusually lean fuel mixture (lean misfire), dirty fuel injectors, low fuel pressure, or even bad fuel"

IF the routing is right, and code is still there and the wires are on tight and the plug is gapped right, then we need to change directions. And if this proves true, pull the plug on the misfiring cylinder, take a pc and up load it. When you put it back in, move it to another cylinder and put that cylinders plug in the number one cylinder. IF the mis-fires moves to the other cylinder, we have a bad plug. IF the mis fire stays on number one, well pick up there.

You can either clear thecodes, run the engine and pull the codes from the computer to find out where the mis-fire is. OR pull on plug wire at a time with the engine running and see if there is a perceptible difference, if none then you have a cylinder that is misfiring.

If so, put a sparktester on that wire and see if there is no spark. If you have spark, pressure test the cylinder.

You going to cause more damage by running it as unburned fuel may be getting into the crankcase. Smell the oil and check the level. If fuel is present get the oil otta there. I'll see what I can dig up to help.

Please start a new question

Best, Ken