Well this one has me stumped. I reviewed several post and as recommended I removed the engine harness and replaced all the damaged/flaky insulation wires. I replaced the MAF sensor. Tried swapping injectors around to see if the misfire follows the injector. Check injector pulse to all cylinders. Good. Check compression on all cylinders. 160 psi all cylinders. Check to be sure I had spark at all cylinders. Good. Moved the Spark plugs around to see if it follows the spark plug. Moved the spark plug wires around. Still no change only Cylinder #4 is misfiring. Any Help or suggestions would be greatly appreciated.