Real Knock or Phantom Knock?

[caffeinetripp]

THIS is scary. 15 counts of knock. Starts around 2500 RPM in any gear, only after cruising for a little while.
Running a S16G, 550s, AEM wideband, OE boost gauge set for 5 counts of knock, 2G MAF, 255LPH fuel pump, stock IC, 6 bolt with 1G knock sensor, run 92 octane or higher from SA in Champlin. Recently threw O2 sensor, IAT, and barometric pressure codes. I contribute the MAF codes to one of the wires coming lose, have since fixed it. The O2 sensor code may be attributed to running rich for so long before fixing the boost leak.
Started happening more recently than before (warm temperatures?) after fixing boost leak at J pipe.
Haven't done any tuning as of yet with Link, just logging files. The knocking starts around 155. Any ideas? I posted on ECMLink and DSMTalk as well hoping to come up with a solution as well.

[CarPsyco84]

Is the knock sensor junk? poke your finger in there and if you get goey junk on your finger... it's time for a new one.

[Kracka]

Considering you said stock intercooler and SA gas in the same sentance I'm going to go ahead and assume that is real knock. The only widely available pump gas in Minnesota worth running is BP (preferably 93-octane).

[caffeinetripp]

I got a recommendation to change the knock sensor's settings a bit; 30% throttle and 2500 RPM. Did that and no more knock. I think it might have been picking up the lifters and the BSE.
Of course, the SMIC doesn't help nor does pump gas. I also upped the fuel as well to hopefully help compensate. But given it was at such a low RPM and only happened after so long a time, I'm thinking it was more than likely the temperatures and the lifters ticking after the oil getting so hot.
Really gotta get that FMIC on. Soon.

[Kracka]

Again, stop filling up at SA! Their gas is total garbage.

[t-revzr]

SA = Fail!

[CarPsyco84]

How much boost are you running? Must be some knarly lifter tick, I would doubt that it would pick that up, the knock sensor is a long way away from the cams and is separated by a gasket. I had a rod bearing that got hammered out bad, car sounded like a damn diesel Jetta, and it still only caused a couple points of knock in the ECU.

[caffeinetripp]

It's set at 20. But honestly, I RARELY hit 20. Work's a mile away and it's 35 MPH the whole way. I am going to dial it down quite a bit though since I just noticed it hitting 20. The guy that owned it previously had it 'set' at 14, but since the boost leak got fixed, the actual boost is going to the motor instead of the 14 that should be.
It'll take some more fine tuning of course, but since I haven't the slightest on fine tuning I'll be skipping it until MAP can take care of it.
Looks like I will be hitting up the BP from now on then. lol Or Holiday. One of the two...but SA is so damn close.
Any reason SA gas is bad? Figures? Numbers? Pie charts?

[Kracka]

Holiday is junk too. BP BP BP BP BP! Should we say it again?

[t-revzr]

Davidv with his evo was runnin either sa or holiday and was down on power by alot. He then used BP and gained like 30whp. True story this happened last summer I believe.