having trouble with my 2001 pontiac bonneville sle misfiring replaced spark plugs and wires. random misfire code comes back on and the car shakes. it burns gas

we need your diagnostic trouble codes to help you, get them from an autoparts store....any one or buy a scanner on amazon for about 18 bucks~

Got some crappy fuel maybe?

accelerator sensor....where human meets computer....computer's gonna win...used to have a cable....but noooooo create a device that can send you FULL throttle into a tree, in your case seems to be giving contrary signals and your injection system is faithfully obeying every bogus command~

Try the coil packs. If one coil fails you loose two plugs. Pull one plug from each coil one at a time, place the end of the plug on metal and start the car. Observe the sparks. They should be blue and crisp, yellow wont do it. Don't touch while running it will hurt. Or get a spark tester but there is nothing like visually seeing your spark to rule it out as a cause. Sometimes these coils fail completely sometimes partially. If more than one coil is acting up it may be the ingnition module.

ya. CEL codes...red flag....find out what gives jalidelaware? out to lunch right now....ducked out for a drink with me mates?

deffinately the coil packs

coil packs & ignition module below it.

EThe trouble code is PO301 Cylinder 1Misfire detected. The car looses power uphill. Engine light on. Replaced middle coil pack and the engine light went out but came back on 10 miles later. Replaced middle coil pack in accordance with cylinder numbers written on old packs. However, another store gave me different set of numbers for each pack. I used numbers on old pack (top to bottom) 5/4, 1/6 and 4/1. New set of numbers are 6/3, 2/5 and 4/1. I think I’ll put new coil to the bottom and put the old pack back to the middle. What do you think? Kent