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I get knocking & ping noise coming from the fuel injectors
tetraethy lead
Try a higher octane fuel
tetra ethyl benzene
When your engine has a knocking noise, it could mean that a rod has been thrown. It could also mean you are low on oil.
they are the same thing. "knocking" in an engine is the fuel igniting from the heat of compression of the fuel and the air together. in a desel engine this is how it is suposed to work because it has no spark plugs so the only way to ingite the fuel is by compressing the fuel and the air by a ratio of about 22 to 1. in a gas engine the fuel is ignitied by a spark plug, if you use low grade fuel the explosion can happen too early (before the spark plug ignites it) and cause a knocking noise in the engine whitch can cause dammage long tearm the typical compression ratio for a gas engine is 10 to 1. the more compression you have the higher grade fuel you need to prevent "knocking" whitch is why higher end cars need higher grade fuel because they have higher compression engines whitch make more horsepower with omperable size engines.
Adjust timing and/or quality of fuel
change fuel pump
Bad fuel pump, loose fuel pump, loose baffle or foreign matter in the tank.
When the fuel in an engine cylinder ignites prematurely or unevenly to cause power fluctuations and a "knocking" sound. usually occurs when an engine is very how or improperly timed.
have you tried higher octane fuel?
warped rotors