False Knock ( View my Log)

[iRace559]

I've now run three different brands of 93 octane gas on both the 93 and 91 maps. I am still getting constant knock issues regardless of what I do.

Im currently running the 91 map with +5 percent fuel across the range. I'm even getting knock during partial throttle situations. At this point I believe this may be a case of false knock. Ive attached my log file, if anyone would like to view it and give me feedback Id greatly appreciate it. I did notice that when I would blip the gas while crusing slowly I would get a high knock reading. Could it be possible that the added noise under the hood from the speedlogix intake could be picked up by the knock sensors? I know its a long shot but its something ive thought about.

Kind of getting fed up at this point.

[sharkcohen]

It can be frustrating. I had a lot of the same issues. I've finally settled on running 94 octane in mine with the 93 tune and 5% fuel. No more knock and the car is a BEAST. The 94 octane is almost 6 bucks a gallon here, but I'm only filling up this car about once a month. If 93 octane is the highest you can get, run the 91 tune. You'll need to find fuel that doesn't give you trouble.

If you can't get the knock out, I would recommend getting a CMR tune. You can find someone local, or there are several awesome tuners that can tune your car remotely and even by email.

[dtru1222]

Log your knock then on the next tank fill up with 93 from Chevron or BP and go to autozone or o reillys and get some NOS octane booster with the nitro methane. They make a few different ones that say +3 or +7 full points. Look for the 7 but if you cant find it try the 3. Fill your tank with it and then do some logs. If your knock has gone down then it is true knock.

[iRace559]

That was actually something I was thinking of doing. I'll give it a try and post my results. Hard to imagine that the majority the 93 octane gas in my town is bad.

[dtru1222]

I live in the DFW area and I get knock no matter what I use. Chevron has been the best that I have found so far but the only way I have completely eliminated it was with the booster.

[iRace559]

No luck still. Something has to be wrong.

Running the 91 tune, with 93 fuel, added the NOS octane booster, +10% fuel across the board. Still getting up to 2.5 degrees of knock. It just doesn't make sense. Its extremely frustrating. Very close to just returning it to stock.

[Ufoldfirst]

what are you driving?