Have you checked for cracks in the coil? Had the same problem until my guy misted the coil with water. If you get a 4th of July result you need to replace the coil....
computer fuse blow out when turn ighition on what is the cause
An engine computer does not cause a misfire but merely reports it. The misfire is probably caused by the ignition coil or plug wires
While an incorrect fuel/air ratio can cause a misfire, it's not likely to cause only one cylinder to misfire unless you have tuned port injection. The more likely cause is the ignition system... Distributor cap, rotor, plug wires, or spark plugs.
Blown fuse.
The timing is off. it will need to be hooked up to a hand held computer system at a shop to correct this.
Trouble code P0301 means:Cylinder 1 misfire detected
No it will not cause misfire.
I had same problem -- fuel pump went out.
Many things can cause any vehicle to misfire. example...lack of spark, lack of fuel, lack of air, or to much of any of the previous things.
There are a few things that could cause an 87 Chevy Astro to idle high when it is started and warmed up. It could be a bad fuse, a leak in the vacuum, or an issue with the throttle.
Contaminated fuel could cause a misfire.
That would probably cause it to run lean.