Spark Knock noise?

TedB370z

Thanks JoePro, I'm taking it to my local mechanic Tuesday but if he isn't successful I'll let you know.

I did end up taking out the fuel pump, its fairly simple. I used this how-to on upgrading the fuel pump for instruction on how to disassemble the fuel pump/filter/level sensor:

CJM Tech Site: A First Look: The 370z Fuel Pump Assembly

It was pretty funky, before pics of it disassembled, there was flakes and chunks of sewt, and the actual fuel filter wassaturated with more sewt, turned the water black when I cleaned it:

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After everything was cleaned, ran biodegradable degreaser and warm soapy water through the fuel pump (using a 9 volt battery and the green and black wires on the pump itself), then plain clean water, then used an air compressor and let it sit to dry everything out

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Its not a difficult unit to disassemble, just have to be patient, and I'm clueless as to why Nissan says it's not serviceable, and doesn't sell the fuel filters separate?