1997 chevy suburban 5.7L P0300 code

[champ2152]

My truck through a P0300 code the other day and have been trying many things to fix it.
I have tried changing the distributor, plugs and wires.
I have tested the fuel pressure and it was on the low end of what the fuel pressure should be. So I tried changing the fuel filter and fuel pump but still did not fix the issue.
Does anyone have any suggestions on the next steps to take?
Any help would be a appreciated.

 

[zora]

stop throwing parts at it and start testing the possible parts that can cause the code
https://www.obd-codes.com/p0300

 

[tedbaguio]

Did you ever get the P0300 code fixed? Am having same issues and cannot seem to find the problem.

 

[zora]

what have you tried?
did you look at this link and follow the suggestions?
https://www.obd-codes.com/p0300