False Knock?
02-28-2013, 06:54 PM
#22
Chopped off another ~5 deg off the high octane table and no improvement. I'm at 12-14 deg of timing in the problem area.
In summary, I've switched from 87 to 91 octane, removed 10-15 deg of timing from the problem area, and disabled EGR. None of these things have helped one bit. No pinging sound that I can hear.
In summary, I've switched from 87 to 91 octane, removed 10-15 deg of timing from the problem area, and disabled EGR. None of these things have helped one bit. No pinging sound that I can hear.
02-28-2013, 07:02 PM
#23
01 and 02 are the same OS.
As far as your knock goes it's false.
Now, as I told you in your previous thread, you're knock sensors are setup too sensitive. You have aftermarket valvetrain that's noisier to your ear and probably to the knock sensors too. Take a second and look at the settings in a C5 Z06 tune. Compare a 5.3 tune to a 6.0 tune. I did this several years ago and found a wide variance in settings, all from the factory. I desensitized mine with no consequences because it was appropriate. It may be in your case as well (you decide).
As far as your knock goes it's false.
Now, as I told you in your previous thread, you're knock sensors are setup too sensitive. You have aftermarket valvetrain that's noisier to your ear and probably to the knock sensors too. Take a second and look at the settings in a C5 Z06 tune. Compare a 5.3 tune to a 6.0 tune. I did this several years ago and found a wide variance in settings, all from the factory. I desensitized mine with no consequences because it was appropriate. It may be in your case as well (you decide).
02-28-2013, 07:15 PM
#24
01 and 02 are the same OS.
As far as your knock goes it's false.
Now, as I told you in your previous thread, you're knock sensors are setup too sensitive. You have aftermarket valvetrain that's noisier to your ear and probably to the knock sensors too. Take a second and look at the settings in a C5 Z06 tune. Compare a 5.3 tune to a 6.0 tune. I did this several years ago and found a wide variance in settings, all from the factory. I desensitized mine with no consequences because it was appropriate. It may be in your case as well (you decide).
As far as your knock goes it's false.
Now, as I told you in your previous thread, you're knock sensors are setup too sensitive. You have aftermarket valvetrain that's noisier to your ear and probably to the knock sensors too. Take a second and look at the settings in a C5 Z06 tune. Compare a 5.3 tune to a 6.0 tune. I did this several years ago and found a wide variance in settings, all from the factory. I desensitized mine with no consequences because it was appropriate. It may be in your case as well (you decide).
I'll look at some other knock sensor settings and do some research. My settings are still stock and I was hesitant to mess with them until now. Thanks!
02-28-2013, 07:23 PM
#25
It may be a different OS number, but it's the newer style of OS versus 99-00...doesn't have the backup VE table and all that jazz.
I run 12212156 myself, well the COS3 version of that. You could always try flashing that OS and see if it helps. I doubt it though.
I run 12212156 myself, well the COS3 version of that. You could always try flashing that OS and see if it helps. I doubt it though.
03-01-2013, 12:58 AM
#26
Well I went ahead and made a tune using the 12212156 OS so I can do the T56 segment swap. Then I spent a couple hours and went through the tune and made sure it was up to date with most of the changes I've been making (DTCs, gears, fans, EGR, DFCO, throttle cracker, etc) in my other tune. The '02 tune has less sensitive knock sensor settings than my 01, maybe it'll help.
03-06-2013, 11:11 AM
#27
I flashed in the 12212156 OS with a T56 segment swap and copied over everything from the '01 tune except for the knock sensor settings, and the false knock has been reduced quite a bit. I didn't get any KR on the way to work today.
Despite the settings being all the same, the new OS seems to drive a lot better. DFCO kicks in a lot faster now too after letting off the gas. RPM doesn't spike as badly on startup either. Overall I'm pretty happy.
Despite the settings being all the same, the new OS seems to drive a lot better. DFCO kicks in a lot faster now too after letting off the gas. RPM doesn't spike as badly on startup either. Overall I'm pretty happy.
03-06-2013, 01:45 PM
#28
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I do the 12212156 on all the 99-01s that i work with.. i did it to my truck and it helped a good bit on false KR..
COS3 and do a speed density tune to dial in the VE table.. then do the MAF calibration thing.. You might be amazed at a power gain and throttle response
COS3 and do a speed density tune to dial in the VE table.. then do the MAF calibration thing.. You might be amazed at a power gain and throttle response
03-06-2013, 02:13 PM
#29
I do the 12212156 on all the 99-01s that i work with.. i did it to my truck and it helped a good bit on false KR..
COS3 and do a speed density tune to dial in the VE table.. then do the MAF calibration thing.. You might be amazed at a power gain and throttle response
COS3 and do a speed density tune to dial in the VE table.. then do the MAF calibration thing.. You might be amazed at a power gain and throttle response
Once I get the turbo kit on with the wideband I'm going to try auto VE.
03-06-2013, 03:06 PM
#30
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COS tutorial..
i think your gonna be looking for COS3 with a OS of 02020003
check this out
http://download.efilive.com/Tutorial...20Tutorial.pdf
How to Load a Custom Operating System
i think your gonna be looking for COS3 with a OS of 02020003
check this out
http://download.efilive.com/Tutorial...20Tutorial.pdf
How to Load a Custom Operating System