Hello I recently bought a 1996 gmc Yukon 5.7l and it’* got a check engine light for p0300 (random misfire) and that’* the only check engine light on, I’ve replaced the spark plugs, distributor wires, fuel filter, distributor cap and rotor and the ignition coil, the light it still on and I cannot figure it out it has a slight shake when idling and check engine light flashes for p0300 but as soon as you give it gas it runs smooth any help is appreciated

How many miles on it?

What is the fuel pressure at idle?

Check your coolant level too.

Those motors have the spider injection system which is prone to issues, might look into that.

Yeah. Tinkers right. Those spiders cause problems. Does it take time to start and smell like gas?