EK

Dears,

I have tried searching over the internet and different forums for days but nothing like the problem i am facing.

I cannot tell whether its a knock/ tick noise. Whenever i accelerate and reach high rpm's, specifically 5.5-6 rpm, i hear that noise of a knock/ tick at the driver side exactly where the fuel return line is (maybe above the pedals). The noise is exactly like an electrical spark or mis wiring noise. No noise at all when idling and its there regardless of diff boost levels ( i max run 1.2 bar as highest reading throughtout the whole rpm levels)

I even turned boost to 0.7 bar and in all weather conditions, i still have it.

I always run 95 octan and i did replace the fuel pressure regulator because it was leaking,, i thought it would be the reason for the noise too but still.

I don have a/f gauge and i dont know what to do.. My FPR replaced is adjustable sytec model and i did set it at 3 bar and tried 2.75,, again still.

Any idea or useful input will be highly appreciated.