Thread: Got some knock issues I'm not to sure about

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  1. #1 Got some knock issues I'm not to sure about 
    GrandPrix Junkie Sandman's Avatar
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    Info on the car:
    L26 swap, L32 heads, ported GenIII, 1.84 YT rockers, Plog/3"DP, stock pulley, 180* thermo, stock tranny

    I think I have my MAF tables dialed in pretty good, while I have the tuning file flashed to get the part throttle dialed in it won't read LTFTs, with the standard tune they're -5 to 0, WOT MAF section was at 0 when I tuned that to 11.0.

    I started tuning the timing, got some knock so I backed it down some on the stock table in the areas of knock, none at part throttle BTW. I did some scanning on the way to work, ~10 min drive, and did a couple of pulls with downshifts, and I spiked at 8* I believe when last night I only got 2* IIRC.

    After work I loaded the 05+ timing tables and scanned on the way home. Did a pull from 1st gear and I only 1* of knock, did a 3rd-1st downshift and once again got something like 8*, it did the same thing on a 2nd-1st shift.

    Am I looking at false knock issues?

    If someone tells me how I'll upload my tunes and both scans
    05 Saab 9-2X Linear (Saabaru)
    77 Morris Garage B
    Quote Originally Posted by TLSheff View Post
    You said "I'm done with it"... car says "Oh, really? *trollface*"
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  2. #2 Re: Got some knock issues I'm not to sure about 
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    Use google docs so we can check them out.
    Are you tuning with a wideband? If you're not you're really only guessing.
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  3. #3 Re: Got some knock issues I'm not to sure about 
    Perma-Banned! JK LOL Explicit_Spade's Avatar
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    What does your wideband say WOT AFR is?
    Quote Originally Posted by W-Body Store
    Remember, GM engineers didn't take into account your need for speed.
    Daily Driver: 06 Grand Prix GT / 9.4:1 CR / IS3 Heads / Ported Gen V / ZZP Headers / HPT Pro / Pulleys: 4.25, 3.8, 3.5, 3.4, 3.2, 3.0, 2.9, 2.7
    Projects: 86 Monte Carlo SS / 98 Sonoma / 74 Honda CB750
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  4. #4 Re: Got some knock issues I'm not to sure about 
    GrandPrix Junkie Sandman's Avatar
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    I wouldn't tune unless I had a WB. Just glancing at the WB on a pull it may be at something like 10.8-11.0 it fluctuates slightly.

    current tune:
    https://docs.google.com/leaf?id=0ByU...0NDRj&hl=en_US

    morning drive:
    https://docs.google.com/leaf?id=0ByU...xY2Y5&hl=en_US

    afternoon drive:
    https://docs.google.com/leaf?id=0ByU...3YTA3&hl=en_US
    05 Saab 9-2X Linear (Saabaru)
    77 Morris Garage B
    Quote Originally Posted by TLSheff View Post
    You said "I'm done with it"... car says "Oh, really? *trollface*"
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  5. #5 Re: Got some knock issues I'm not to sure about 
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    Links don't work for me
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  6. #6  
    GrandPrix Junkie Sandman's Avatar
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    Hmmm, I'll mess with it after I get out of class. I did a couple of more pulls and same thing. 1st gear pull got no knock, downshift pull immediately goes to 6*, did another 1st gear short pull and got 1*.

    I'm hoping false knock, it shouldn't be the sway bar since I've had it since I got the car, I've had poly dogbone mounts for a year now no issue, I'm not hearing any noises either. I'll get under it this weekend and make sure everything is tight.
    05 Saab 9-2X Linear (Saabaru)
    77 Morris Garage B
    Quote Originally Posted by TLSheff View Post
    You said "I'm done with it"... car says "Oh, really? *trollface*"
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  7. #7 Re: Got some knock issues I'm not to sure about 
    GrandPrix Junkie Sandman's Avatar
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    If you can see it here's the thread on the HPT forums

    Got some knock issues I'm not to sure about - HP Tuners Bulletin Board
    05 Saab 9-2X Linear (Saabaru)
    77 Morris Garage B
    Quote Originally Posted by TLSheff View Post
    You said "I'm done with it"... car says "Oh, really? *trollface*"
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  8. #8 Re: Got some knock issues I'm not to sure about 
    GXP Level Member darkhorizon's Avatar
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    Its not false.... Downshifting is by far the worst thing you can subject your motor and trans to.

    I never downshift my modded cars like that... and I try not to do it in my DD's as much as I can. It really isnt that hard to reach over and pull it down into the gear you want now is it?
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  9. #9 Re: Got some knock issues I'm not to sure about 
    GrandPrix Junkie Sandman's Avatar
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    Then I guess I'll be pulling most of the timing from the WOT areas then. I'll be looking into a meth kit pretty soon looks like.

    Also can a nonfuncioning BBV cause any issues like this?
    05 Saab 9-2X Linear (Saabaru)
    77 Morris Garage B
    Quote Originally Posted by TLSheff View Post
    You said "I'm done with it"... car says "Oh, really? *trollface*"
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  10. #10 Re: Got some knock issues I'm not to sure about 
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    I took out the torque management and the KR is all gone, I've only gotten a couple of blips of 1* at the shifts on multiple pulls.
    05 Saab 9-2X Linear (Saabaru)
    77 Morris Garage B
    Quote Originally Posted by TLSheff View Post
    You said "I'm done with it"... car says "Oh, really? *trollface*"
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  11. #11 Re: Got some knock issues I'm not to sure about 
    I AM PEWPIN! rynoman03's Avatar
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    I just did this to mine tonight and the car still has some kr but not near as much. I was quite surprised.
    1999 GTPHP Tuned, Ported SC/TB, 42#'s, SSAC's, ZZP Modded 1.9's/LS6 Springs/Manley's, TransGo Shift Kit, Poly Uppers, KYB GR2's/Springtech's. - 231k and traded it in. - Gone
    2000 GTP: XP, P&P'd Heads, N*\Lq4 MAF, GenV, 42#'s, PRJ Rails\FPR, Racetronix, TEP w/ 3.29 Gears, 300m, 7/8" chain, SSAC's. - Collecting dust in my garage.
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  12. #12 Re: Got some knock issues I'm not to sure about 
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    I still get a blip every now and then. My thing is that everything in the interior buzzes when the torque converter locks up and a blip from a stop. Its fvcking annoying. All the mounts are the same from the original motor. I'll be going over it this weekend to see if anything is making contact, but I dont think it is. If I can't find anything I'll make some Vinnie Spacers and take these poly dog one mounts off.
    05 Saab 9-2X Linear (Saabaru)
    77 Morris Garage B
    Quote Originally Posted by TLSheff View Post
    You said "I'm done with it"... car says "Oh, really? *trollface*"
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  13. #13 Re: Got some knock issues I'm not to sure about 
    I AM PEWPIN! rynoman03's Avatar
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    See i get a Huge 11* blip when i hit the throttle over 45%. If i roll into it now its not as bad but still stinks. After taking off all of the TQ Management at least i can roll into boost and go WOT and it will go down to 0ish. I still got alot ot work out. I've been getting some p1811 codes lately. It was shifting pretty hard this morning. I think it might have been the way i had the tune setup. I'm not sure. I went back to a previous tune and took away the TQ management and it seems to act much better. Glad you got your issue solved i need to open my own thread...
    1999 GTPHP Tuned, Ported SC/TB, 42#'s, SSAC's, ZZP Modded 1.9's/LS6 Springs/Manley's, TransGo Shift Kit, Poly Uppers, KYB GR2's/Springtech's. - 231k and traded it in. - Gone
    2000 GTP: XP, P&P'd Heads, N*\Lq4 MAF, GenV, 42#'s, PRJ Rails\FPR, Racetronix, TEP w/ 3.29 Gears, 300m, 7/8" chain, SSAC's. - Collecting dust in my garage.
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  14. #14 Re: Got some knock issues I'm not to sure about 
    GrandPrix Junkie Sandman's Avatar
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    You have looked into the usual suspects for false knock right?
    05 Saab 9-2X Linear (Saabaru)
    77 Morris Garage B
    Quote Originally Posted by TLSheff View Post
    You said "I'm done with it"... car says "Oh, really? *trollface*"
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  15. #15 Re: Got some knock issues I'm not to sure about 
    I AM PEWPIN! rynoman03's Avatar
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    Sway is flipped. Dogbones are poly. Mounts are good. Other than that refresh my memory.
    1999 GTPHP Tuned, Ported SC/TB, 42#'s, SSAC's, ZZP Modded 1.9's/LS6 Springs/Manley's, TransGo Shift Kit, Poly Uppers, KYB GR2's/Springtech's. - 231k and traded it in. - Gone
    2000 GTP: XP, P&P'd Heads, N*\Lq4 MAF, GenV, 42#'s, PRJ Rails\FPR, Racetronix, TEP w/ 3.29 Gears, 300m, 7/8" chain, SSAC's. - Collecting dust in my garage.
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  16. #16 Re: Got some knock issues I'm not to sure about 
    GrandPrix Junkie Sandman's Avatar
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    That's exactly what I got, its real annoying now so I'm probably going back to stock rubber if I can find them.
    05 Saab 9-2X Linear (Saabaru)
    77 Morris Garage B
    Quote Originally Posted by TLSheff View Post
    You said "I'm done with it"... car says "Oh, really? *trollface*"
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  17. #17 Re: Got some knock issues I'm not to sure about 
    I AM PEWPIN! rynoman03's Avatar
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    Junkyard
    1999 GTPHP Tuned, Ported SC/TB, 42#'s, SSAC's, ZZP Modded 1.9's/LS6 Springs/Manley's, TransGo Shift Kit, Poly Uppers, KYB GR2's/Springtech's. - 231k and traded it in. - Gone
    2000 GTP: XP, P&P'd Heads, N*\Lq4 MAF, GenV, 42#'s, PRJ Rails\FPR, Racetronix, TEP w/ 3.29 Gears, 300m, 7/8" chain, SSAC's. - Collecting dust in my garage.
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  18. #18 Re: Got some knock issues I'm not to sure about 
    GrandPrix Junkie Sandman's Avatar
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    I already have a set, its a matter of where are they hiding in the garage lol
    05 Saab 9-2X Linear (Saabaru)
    77 Morris Garage B
    Quote Originally Posted by TLSheff View Post
    You said "I'm done with it"... car says "Oh, really? *trollface*"
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  19. #19 Re: Got some knock issues I'm not to sure about 
    GT Level Member jdmgtp's Avatar
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    I use to have this issue. IIRC, I think I pulled a little timing in the .68/ .80 load cells at the appropriate rpm. Not sure but I might have also added fuel in the 0 second, 2400 rpm area on my PE add vs RPM table.

    I'm not positive but a shift kit might help this problem since it kicks down damn near immediately instead of allowing the engine to load.
    2000 GTP, 3.2 pulley, SD headers, 3" exhaust, modded 1.9's, custom CAI, LS6 maf, ported blower/ TB, HPT, 65 lb injectors, E85 in the summer, LM-1 wideband, 180 stat, autolite 104's, GMHD suspension kit. 13.2@104 on street tires w/o ported s/c
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  20. #20 Re: Got some knock issues I'm not to sure about 
    GrandPrix Junkie Sandman's Avatar
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    I've had a shift kit for a while, I did remove a little bit of timing which helped some, removed torque management, and desensitized the knock sensors some. Its still there but worlds better than before. I'm going to try and find my stock rubber mounts and swap those.
    05 Saab 9-2X Linear (Saabaru)
    77 Morris Garage B
    Quote Originally Posted by TLSheff View Post
    You said "I'm done with it"... car says "Oh, really? *trollface*"
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