Utec related misfires? Evaluate my logs

BigBoosting · 04-26-2006, 11:10 PM

I need some help figuring out a serious misfire problem. My car wont rev past about 6500 because under full load it breaks up and misfires so bad it wont rev past. It will missfire at all boost levels from 10psi to 25psi, so its not boost dependent.

First off i have changed or checked the following so don't post saying check this and that:

Plugs several times with all propper gaps
Coil packs
Pressure tested the intercooler pipes
All grounds on the car, inlcuding the UTEC ground
Injectors flow within 2% of each other
Pulled codes from the ECU, NOTHING

Look at the logs and let me know if you see anything strange

Here is the first log, this is from the track and as you can see it doesnt rev past 6500 or 6600 rpm becase it breaks up so bad

Code:

                    Load Knock                Mod   Mod         Mod
 RPM   MAP  MAF TPS Site Count  Ign#1  Inj#1  Ign   Fuel Boost  MAF
       psia  V   %               deg   duty   deg    %   (OL)    V 
  743 -11.0 1.1   0  00    00   +24.0    1.5 ECU.   +1.0 ECU.   1.1
  742 -11.0 1.1   0  00    00   +24.0    1.5 ECU.   +1.0 ECU.   1.1
  763 -11.0 1.1   0  00    00   +23.8    0.9 ECU.   +1.0 ECU.   1.1
  734 -11.0 1.1   0  00    00   +23.8    1.0 ECU.   +1.0 ECU.   1.1
  816 -10.2 2.0  24  00    00   +17.4   24.3 ECU.   +1.0 ECU.   2.1
 1917  -7.9 2.0   4  10    00   +25.8    6.3 ECU.   +0.0 ECU.   1.4
 2085  -7.5 1.3   3  00    00   +33.8    0.9 ECU.   +0.0 ECU.   1.3
 2022  -7.3 2.0  21  00    00   +32.7    5.7 ECU.   +0.0 ECU.   2.1
 2406  -7.5 1.5   0  00    00   +16.6    1.6 ECU.   +0.0 ECU.   1.2
 2188 -10.2 1.4  10  00    00   +34.5   52.0 ECU.   +0.0 ECU.   1.6
 2078 -10.6 1.3   1  00    00   +16.9    0.9 ECU.   +0.0 ECU.   1.2
 1822 -11.0 1.7  19  00    00   +32.0    4.0 ECU.   +0.0 ECU.   2.1
 2362 -10.6 1.9   3  00    00   +41.2    4.0 ECU.   +0.0 ECU.   1.4
 2308 -10.2 1.5  13  00    00   +35.6    4.2 ECU.   +0.0 ECU.   1.7
 2276 -10.2 1.5   2  00    00   +16.7    2.9 ECU.   +0.0 ECU.   1.2
 1970 -10.4 1.2   8  00    00   +33.7    8.4 ECU.   +0.0 ECU.   1.3
 1714 -11.8 1.2  10  00    00   +29.8   24.6 ECU.   +0.3 ECU.   1.5
 1910 -11.2 2.0  14  00    00   +30.8    5.8 ECU.   +0.0 ECU.   2.0
 2606 -10.0 2.1  13  00    00   +42.6    7.0 ECU.   +0.0 ECU.   1.6
 2677  -9.6 1.4   5  00    00   +37.3    4.8 ECU.   +0.0 ECU.   1.2
 2592  -8.7 2.3  35  10    00   +42.5   10.9 +22.0  +2.1 ECU.   2.7
 3623  -6.9 2.7  51  10    00   +42.6   14.5 +20.0  -1.4 375.00 2.7
 4901  -5.7 3.0  24  00    00   +37.6   22.5 ECU.   +0.0 375.00 2.6
 4528  -5.5 1.5   2  00    00   +16.0    6.5 ECU.   +0.0 ECU.   1.3
 4192  -6.7 1.0   0  00    00   +16.1    6.5 ECU.   +0.0 ECU.   1.0
 3835  -9.8 0.9   0  00    00   +40.2    9.1 ECU.   +0.0 ECU.   1.1
 3650 -12.6 1.9  29  10    00   +40.1    9.4 +20.0  -1.4 ECU.   2.7
 4182 -10.2 2.8  39  10    00   +42.6   22.2 +20.0  -1.0 375.00 2.8
 4578  -8.5 1.6   2  00    00   +16.0    8.1 ECU.   +0.0 ECU.   1.6
 4268  -8.5 1.1   0  00    00   +16.1    8.1 ECU.   +0.0 ECU.   1.0
 3940  -8.7 1.1   3  00    00   +16.2    8.1 ECU.   +0.0 ECU.   1.0
 3572 -11.8 1.0   1  00    00   +16.3    8.1 ECU.   +0.0 ECU.   1.0
 3370 -12.8 2.3  27  10    00   +40.3   10.3 +20.0  -1.4 ECU.   2.5
 3880 -10.2 2.6  16  00    00   +45.3   13.0 ECU.   +0.0 ECU.   2.2
 3972  -9.8 1.4  11  00    00   +39.8   24.3 ECU.   +0.0 ECU.   1.7
 4065  -7.9 2.9  37  10    00   +44.9   16.9 +20.0  -1.2 375.00 2.7
 4923  -6.3 2.9  13  00    00   +37.7   17.1 ECU.   +0.0 ECU.   1.9
 4616  -8.7 1.4   4  00    00   +39.6    4.0 ECU.   +0.0 ECU.   1.3
 4203  -9.1 0.9   0  00    00   +16.1    4.0 ECU.   +0.0 ECU.   0.9
 3822 -11.0 1.0   1  00    00   +16.1    4.0 ECU.   +0.0 ECU.   0.9
 3542 -13.2 1.0   1  00    00   +16.2    4.0 ECU.   +0.0 ECU.   1.0
 3211 -13.6 1.0   0  00    00   +16.3    4.0 ECU.   +0.0 ECU.   1.1
 3072 -12.2 2.6  50  10    00   +42.0   17.1 +20.0  -0.6 375.00 2.7
 4177  -8.7 2.9 103  10    00   +41.5   24.2 +20.0  -1.0 375.00 3.0
 5537  -5.5 3.4 106  10    00   +33.9   45.4 +23.0  -1.0 LCM.   3.5
 5592  -1.4 3.4 105  10    00   +33.9   44.6 +23.0  -1.0 LCM.   3.4
 5602  +1.5 3.6 104  20    00   +32.5   46.7 +23.2  -1.0 LCM.   3.4
 5546  +3.1 3.7 104  30    00   +33.2   45.3 +23.0  -2.2 LCM.   3.4
 5537  +4.5 3.7 105  30    00   +33.3   46.0 +22.8  -2.2 LCM.   3.4
 4246  +5.9 3.8 105  30    00   +25.0   45.4 +19.3  -1.5 375.00 3.6
 2949  +8.0 3.2 105  50    00   +18.1   23.8 +15.0  +0.0 375.00 3.0
 3121  +9.2 3.1 105  50    00   +25.0   26.8 +15.0  +0.0 375.00 3.1
 3290 +10.8 3.3 105  50    00   +23.7   28.5 +15.0  -2.3 375.00 3.1
 3650 +11.7 3.2 105  50    00   +26.1   28.8 +16.0  -2.4 375.00 3.2
 4156 +11.9 3.8 107  60    00   +22.7   45.7 +17.3  -2.8 375.00 3.7
 5050 +13.1 4.2 107  70    00   +17.0   71.0 +19.0  -3.1 375.00 4.0
 5640 +15.3 4.5 108  80    00   +16.2   85.2 +20.0  -4.2 375.00 4.2
 6207 +18.6 4.5 107 100    00   +19.4   83.3 +22.8  -4.7 375.00 4.2
 6613 +21.0 4.6 106 100    00   +24.2   77.9 +25.8  -4.3 LCM.   4.1
 6325 +22.5 4.2 107 100    00   +32.5   65.4 +22.8  -4.7 LCM.   3.8
 5081 +21.9 4.2 109  90    00   +18.1   65.7 +18.0  -5.1 375.00 4.0
 5208 +21.7 4.3 109  90    00   +13.6   73.4 +18.5  -5.1 375.00 4.1
 5630 +21.7 4.5 109 100    00   +19.5   81.0 +20.0  -4.9 375.00 4.2
 6006 +21.9 4.5 108 100    00   +19.5   82.1 +21.8  -4.7 375.00 4.2
 6548 +22.7 4.5 109 100    00   +36.5  ---.- +24.4  -5.1 375.00 4.2
 6802 +22.9 4.6 107 100    00   +38.5   84.4 +19.0  -5.0 LCM.   4.3
 6242 +22.9 4.2 109 100    01   +36.9   60.0 +22.4  -4.8 LCM.   3.8
 5717 +22.1 4.2 108  90    00   +22.7   72.3 +19.4  -4.9 375.00 4.2
 5527 +22.1 4.5 110  90    00   +19.4   78.9 +18.6  -5.0 375.00 4.1
 5546 +22.3 4.5 108 100    00   +23.8   80.9 +19.2  -5.0 375.00 4.1
 5858 +22.9 4.5 110 100    00   +23.4   84.3 +20.7  -5.0 375.00 4.2
 5941 +24.1 4.6 110 100    00   +22.4   83.1 +21.9  -4.8 375.00 4.2
 6548 +24.5 4.5 108 100    00   +24.5   86.5 +23.0  -4.6 375.00 4.2
 6397 +23.7 4.6 108 100    00   +37.6   82.2 +22.8  -5.1 375.00 4.1
 6422 +22.9 4.6 108 100    00   +27.8   83.7 +25.2  -4.6 375.00 4.2
 6016 +21.9 4.2 106  90    00   +35.6   63.6 +21.0  -4.9 LCM.   3.8
 5104 +19.8 3.9 109  80    00   +29.4   69.8 +18.8  -4.3 375.00 4.0
 5350 +19.4 4.5 111  80    00   +15.2   80.0 +18.0  -4.3 375.00 4.2
 5249 +19.6 4.5 110  90    00   +21.1   72.9 +18.2  -5.1 375.00 4.0
 5527 +20.4 4.4 109 100    00   +21.6   79.6 +18.8  -5.0 375.00 4.1
 5592 +22.7 4.6 110 100    00   +22.0   80.8 +19.6  -5.0 375.00 4.2
 5678 +23.7 4.5 108 100    00   +22.2   82.1 +20.3  -4.9 375.00 4.2
 5973 +23.7 4.5 109 100    00   +22.3   84.8 +21.2  -5.0 375.00 4.2
 6082 +23.7 4.5 108 100    00   +22.2   84.0 +22.2  -4.7 375.00 4.3
 6082 +23.9 4.6 109 100    00   +23.5   84.2 +22.2  -4.7 375.00 4.3
 6195 +23.7 4.6 109 100    00   +23.7   85.4 +23.6  -4.7 375.00 4.3
 6373 +24.3 4.6 112 100    00   +38.6   87.1 +18.0  -5.1 375.00 4.1
 6207 +24.5 4.6 110 100    00   +27.2   89.4 +24.8  -4.7 375.00 4.3
 5920 +24.1 4.2 107 100    00   +34.7   62.9 +20.1  -5.0 LCM.   3.8
 5050 +22.7 4.2 108  90    00   +27.0   72.9 +18.4  -4.6 375.00 4.1
 4681 +21.9 4.3 108  90    00   +14.3   70.8 +18.4  -4.6 375.00 4.0
 4748 +21.7 4.3 108 100    00   +19.6   68.3 +18.3  -5.0 375.00 4.1
 4721 +22.1 4.4 108 100    00   +20.6   72.1 +18.4  -5.0 375.00 4.0
 4803 +23.7 4.4 108 100    00   +20.4   74.8 +18.3  -4.9 375.00 4.0
 4901 +24.3 4.4 108 100    00   +20.8   71.5 +18.2  -5.0 375.00 4.0
 5027 +24.5 4.4 109 100    00   +21.2   74.7 +18.0  -5.1 375.00 4.0
 4982 +24.3 4.4 109 100    00   +21.4   73.6 +18.0  -5.1 375.00 4.0
 5128 +24.7 4.4 108 100    00   +21.6   70.7 +18.0  -5.1 375.00 4.1
 5104 +24.7 4.4 109 100    00   +22.2   75.9 +18.0  -5.1 375.00 4.1
 5341 +24.3 4.4 108 100    00   +22.3   73.7 +18.2  -5.1 375.00 4.1
 5367 +24.5 4.4 108 100    00   +22.2   74.6 +18.2  -5.1 375.00 4.1
 5385 +24.1 4.5 110 100    00   +22.0   75.3 +18.7  -5.1 375.00 4.1
 5446 +24.3 4.5 109 100    00   +21.9   75.9 +18.8  -5.0 375.00 4.1
 5518 +24.3 4.6 112 100    00   +21.9   82.2 +18.9  -5.0 375.00 4.2
 5678 +24.1 4.5 108 100    00   +21.7   81.8 +19.6  -5.0 375.00 4.2
 5574 +24.5 4.5 108 100    00   +21.4   82.1 +19.4  -5.0 375.00 4.2
 5659 +24.1 4.5 108 100    00   +21.5   85.3 +20.1  -4.9 375.00 4.2
 5717 +24.1 4.6 110 100    00   +21.3   82.7 +20.6  -5.0 375.00 4.2
 5747 +24.5 4.6 109 100    00   +21.4   83.5 +20.1  -5.0 375.00 4.3
 5984 +24.1 4.6 110 100    00   +21.5   83.5 +21.5  -5.0 375.00 4.2
 5899 +23.9 4.6 110 100    00   +21.5   83.9 +20.7  -5.0 375.00 4.2
 6038 +23.7 4.5 108 100    00   +21.5   86.6 +21.6  -4.8 375.00 4.2
 6049 +23.5 4.7 111 100    00   +21.6   86.0 +21.8  -4.8 375.00 4.2
 6082 +23.1 4.6 108 100    00   +22.5   85.1 +22.4  -4.7 375.00 4.2
 6027 +23.5 4.6 103 100    00   +22.7   86.4 +22.4  -4.8 375.00 4.4
 6016 +20.8 3.1   2  00    00   +39.8   56.6 ECU.   +0.5 ECU.   2.8
 6082 +12.7 2.7   0  00    00   +42.8   31.0 ECU.   +0.5 ECU.   2.4
 5727  +4.1 1.3   0  00    00   +39.5    4.2 ECU.   +0.0 ECU.   1.2
 5274  -5.1 1.2   0  00    00   +22.7    4.9 ECU.   +0.0 ECU.   1.4
 4909 -11.6 1.5   2  00    00   +22.8   68.1 ECU.   +0.0 ECU.   1.5
 4516 -12.4 1.5   0  00    00   +22.7   68.1 ECU.   +0.0 ECU.   1.5
 4171 -12.8 1.5   0  00    00   +22.8   68.1 ECU.   +0.0 ECU.   1.5
 3800 -12.8 1.5   0  00    00   +23.0   68.1 ECU.   +0.0 ECU.   1.6
 3534 -12.8 1.5   0  00    00   +23.0   68.1 ECU.   +0.0 ECU.   1.5
 3214 -12.6 1.5   3  00    00   +23.0   68.1 ECU.   +0.0 ECU.   1.4
 2931 -12.6 1.4   0  00    00   +23.1   68.1 ECU.   +0.0 ECU.   1.3
 2635 -12.6 1.4   1  00    00   +23.2   68.1 ECU.   +0.0 ECU.   1.3
 2382 -12.6 1.3   0  00    00   +23.4   68.1 ECU.   +0.0 ECU.   1.2
 2096 -12.8 1.3   1  00    00   +23.4   68.1 ECU.   +0.0 ECU.   1.2
 1846 -12.8 1.3   1  00    00   +23.6   68.1 ECU.   +0.0 ECU.   1.3
 1579 -12.8 1.3   0  00    00   +21.0   68.1 ECU.   +0.9 ECU.   1.3
 1333 -12.6 1.3   0  00    00   +18.5   68.1 ECU.   +1.0 ECU.   1.3
 1088 -12.0 1.4   1  00    00   +17.4   68.1 ECU.   +1.0 ECU.   1.3

Here is the second log, this is from the street and you can still see where it stops reving

Code:

                    Load Knock                Mod   Mod         Mod
 RPM   MAP  MAF TPS Site Count  Ign#1  Inj#1  Ign   Fuel Boost  MAF
       psia  V   %               deg   duty   deg    %   (OL)    V 
 3303  -7.3 2.4  24  00    00   +47.3    9.7 ECU.   +0.0 ECU.   2.4
 3313  -7.3 2.4  24  00    00   +47.2   11.6 ECU.   +0.0 ECU.   2.4
 3330  -6.1 2.6  26  10    00   +45.9   12.5 +20.0  -1.4 ECU.   2.5
 3356  -5.1 2.7  29  10    00   +43.8   15.0 +20.0  -1.4 ECU.   2.6
 3397  -3.4 2.8  32  10    00   +42.2   16.1 +20.0  -1.4 375.00 2.7
 3439  -2.2 3.0  40  10    00   +40.7   18.8 +20.0  -1.4 375.00 2.8
 3483  -0.4 3.1  59  10    00   +38.8   20.6 +20.0  -1.4 375.00 2.9
 3531  +1.5 3.2  73  20    00   +35.0   22.6 +17.0  -1.4 375.00 3.1
 3607  +3.1 3.3  90  30    00   +32.2   25.8 +16.0  -1.4 375.00 3.2
 3654  +5.1 3.5 102  30    00   +28.1   30.7 +16.0  -1.4 375.00 3.4
 3779  +6.8 3.5 102  40    00   +24.1   36.8 +16.2  -1.4 375.00 3.4
 3840  +8.8 3.7 102  50    00   +20.7   41.6 +15.6  -1.4 375.00 3.6
 3949 +11.0 3.8 102  60    00   +16.9   47.9 +15.7  -1.4 375.00 3.8
 4065 +13.5 4.0 102  70    00   +14.3   58.2 +15.9  -1.7 375.00 3.9
 4120 +16.4 4.1 102  90    00   +13.7   60.1 +14.3  -2.7 375.00 3.9
 4273 +18.6 4.1 102  90    00   +14.7   61.3 +14.7  -2.9 375.00 3.9
 4438 +21.0 4.2 102 100    00   +15.2   65.0 +15.1  -2.9 375.00 3.9
 4572 +22.5 4.2 102 100    00   +16.5   66.0 +15.7  -2.9 375.00 3.9
 4721 +22.5 4.3 102 100    00   +17.6   67.1 +16.3  -3.0 375.00 4.0
 4830 +22.9 4.2 103 100    00   +18.9   70.1 +16.4  -3.1 375.00 4.0
 4952 +22.5 4.3 103 100    00   +18.5   74.8 +16.2  -3.1 375.00 4.1
 5027 +21.9 4.3 102  90    00   +18.4   76.5 +16.0  -3.1 375.00 4.1
 5120 +22.7 4.4 103 100    00   +18.2   77.0 +16.0  -2.7 375.00 4.1
 5402 +22.9 4.5 103 100    00   +18.1   82.1 +16.1  -3.1 375.00 4.2
 5500 +22.5 4.5 102 100    00   +17.8   84.7 +16.3  -2.7 375.00 4.2
 5668 +23.1 4.5 103 100    00   +17.0   87.6 +16.7  -2.6 375.00 4.3
 5757 +23.1 4.5 103 100    00   +17.0   86.2 +16.8  -2.6 375.00 4.3
 5878 +23.3 4.6 103 100    00   +16.8   89.2 +17.0  -2.6 375.00 4.3
 5920 +23.9 4.6 103 100    00   +16.9   91.5 +17.3  -2.5 375.00 4.4
 6027 +24.1 4.6 102 100    00   +16.8   94.0 +17.5  -2.3 375.00 4.4
 6207 +23.9 4.6 102 100    00   +17.8   93.7 +18.7  -2.3 375.00 4.4
 6253 +23.7 4.6 103 100    00   +18.9   94.1 +19.2  -2.3 375.00 4.4
 6385 +23.1 4.6 102 100    00   +19.2   95.4 +20.4  -2.2 375.00 4.4
 6485 +23.3 4.7 102 100    00   +20.3   96.5 +20.2  -2.2 375.00 4.4
 6680 +23.3 4.7 103 100    00   +23.1   97.2 +21.5  -2.2 375.00 4.4
 6510 +23.5 4.6 103 100    00   +24.2   86.7 +16.4  -1.9 375.00 4.4
 6600 +23.7 4.7  89 100    00   +22.5   92.2 +16.3  -2.2 375.00 4.4
 6060 +18.8 2.2   0  00    00   +44.8   39.6 ECU.   +0.5 LCM.   2.1
 5592 +10.0 1.9   0  00    00   +40.5    6.2 ECU.   +0.0 LCM.   1.6
 5151  +0.4 1.2   0  00    00   +40.1    3.7 ECU.   +0.0 LCM.   1.1
 4734  -8.7 0.8   0  00    00   +23.6   13.6 ECU.   +0.0 ECU.   0.9
 4306 -13.6 1.2   0  00    00   +23.5   13.6 ECU.   +0.0 ECU.   1.2
 3996 -14.2 1.2   0  00    00   +23.4   13.6 ECU.   +0.0 ECU.   1.3
 3635 -14.5 1.2   0  00    00   +23.7   13.6 ECU.   +0.0 ECU.   1.2
 3284 -14.2 1.2   0  00    00   +23.7   13.6 ECU.   +0.0 ECU.   1.3
 2992 -14.2 1.3   0  00    00   +23.7   13.6 ECU.   +0.0 ECU.   1.3
 3211 -14.0 1.3   0  00    00   +23.3   13.6 ECU.   +0.0 ECU.   1.3
 3436 -14.0 1.3   0  00    00   +23.5   13.6 ECU.   +0.0 ECU.   1.2
 3415 -13.8 1.3   0  00    00   +23.5   13.6 ECU.   +0.0 ECU.   1.3
 3356 -13.8 1.4   0  00    00   +23.6   13.6 ECU.   +0.0 ECU.   1.4
 3303 -13.6 1.5   0  00    00   +23.6   13.6 ECU.   +0.0 ECU.   1.5
 3264 -13.2 1.6   0  00    00   +23.7   13.6 ECU.   +0.0 ECU.   1.6

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cdvma · 04-27-2006, 12:29 PM

What are you running for turbo and injectors? Also what plugs and whats the gap?

wrex03 · 04-27-2006, 12:53 PM

Smooth your timing map out. It hurts just to look at it....

As for your problem, it's most likely a coil pack issue. Do a search on it.

BigBoosting · 04-27-2006, 07:27 PM

Quote:

Originally Posted by cdvma

What are you running for turbo and injectors? Also what plugs and whats the gap?

FP Red, Deatschwerks modified stock injectors (860cc). One step colder plugs, I've tried them at 22 24 26 28, you name it

Quote:

Originally Posted by wrex03

As for your problem, it's most likely a coil pack issue. Do a search on it.

Quote:

Originally Posted by BigBoosting

First off i have changed or checked the following so don't post saying check this and that:

Plugs several times with all propper gaps
Coil packs
Pressure tested the intercooler pipes
All grounds on the car, inlcuding the UTEC ground
Injectors flow within 2% of each other
Pulled codes from the ECU, NOTHING

cdvma · 04-27-2006, 09:48 PM

To me it doesn't look like there is anything in the logs that would make it stop at 6500. You may very well be experiencing spark blowout but I cannot say for sure. I know you listed it, but were the packs replaced or checked?

gaby · 04-28-2006, 01:14 AM

Your injector are maxxed out or the Utec boost cut or rpm limiter is not set.

gaby · 04-28-2006, 01:15 AM

also try to disable the lauch control.

cdvma · 04-28-2006, 03:19 AM

Quote:

Originally Posted by gaby

Your injector are maxxed out or the Utec boost cut or rpm limiter is not set.

You can max out an injector but it won't really cause you to just stop revving. Boost cut would have gone off way before 6500. Rev limiter is likely.

BigBoosting · 04-28-2006, 08:44 AM

All four packs were replaced

Injectors aren't really maxxed out, they're 860cc but the utec value for them in 600cc I believe

Disabled launch control and it still does it

I don't think you can change the rpm limiter on the sti utec version

ride5000 · 04-28-2006, 11:08 AM

do you have any idea what your afrs are?

ride5000 · 04-28-2006, 11:09 AM

what are the other mods on the car? big maf? what turbo?

seems like you're way rich from what i'm seeing (and assuming) from those logs.

cdvma · 04-29-2006, 12:42 AM

Yea I thought at first, rich, but he is also running 23 psi on a FP Red so I dunno. You would have to be STUPID rich to stop from reving tho.

mlauto · 04-29-2006, 09:55 AM

Two things come to mind-fuel pressure and weak valve springs.

BigBoosting · 04-30-2006, 05:43 PM

Got the car retuned yesterday at TopSpeed.

The car still won't rev past 6500, and Doug believes the Utec is the problem. So I'll go back the week after this one to try Ecutek on it to see if that alleviates the problem.

bcblues · 05-02-2006, 01:40 PM

What does the "LCM" in the Boost (OL) column mean?

bcblues · 05-02-2006, 01:43 PM

I don't think that this is a fix for you, but I had bad hesitation problems with my 04 STi with UTEC at 3500 rpm. I was running 110% or a bit more in the TPS column. I spent a little time calibrating the TPS to 0% and 100% (min/max) and the hesitation went away. I am certain that Doug would have done this for you, but I wanted to post this here for those trying to tune for themselves....

ride5000 · 05-02-2006, 02:18 PM

Quote:

Originally Posted by bcblues

What does the "LCM" in the Boost (OL) column mean?

launch control.

bcblues · 05-03-2006, 01:52 PM

Have you tried disabling your launch control? It seems that it is kicking in where it is not supposed to?

ride5000 · 05-03-2006, 02:25 PM

lcm should/will appear whenever rpms exceeds the value programmed into the utec, and the external switch contacts are closed. he's rolled off the gas and put in the clutch. i see the same thing in my logs.

supermarkus · 05-25-2006, 03:02 PM

did this ever get resolved?

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04-27-2006, 12:29 PM	#2
cdvma Scooby Specialist Member#: 21980 Join Date: Jul 2002 Chapter/Region: NESIC Location: Central MA Vehicle: 2002 PSM WRX (Sold) 2009 BMW X5	What are you running for turbo and injectors? Also what plugs and whats the gap?

04-27-2006, 12:53 PM	#3
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04-27-2006, 09:48 PM	#5
cdvma Scooby Specialist Member#: 21980 Join Date: Jul 2002 Chapter/Region: NESIC Location: Central MA Vehicle: 2002 PSM WRX (Sold) 2009 BMW X5	To me it doesn't look like there is anything in the logs that would make it stop at 6500. You may very well be experiencing spark blowout but I cannot say for sure. I know you listed it, but were the packs replaced or checked?

04-28-2006, 01:14 AM	#6
gaby Scooby Specialist Member#: 94097 Join Date: Aug 2005 Location: Tucson, AZ Vehicle: 2004 WRX Hybrid GT35 11.2@130.7	Your injector are maxxed out or the Utec boost cut or rpm limiter is not set.

04-28-2006, 01:15 AM	#7
gaby Scooby Specialist Member#: 94097 Join Date: Aug 2005 Location: Tucson, AZ Vehicle: 2004 WRX Hybrid GT35 11.2@130.7	also try to disable the lauch control.

04-28-2006, 08:44 AM	#9
BigBoosting Scooby Newbie Member#: 48553 Join Date: Nov 2003 Chapter/Region: South East Location: Atlanta	All four packs were replaced Injectors aren't really maxxed out, they're 860cc but the utec value for them in 600cc I believe Disabled launch control and it still does it I don't think you can change the rpm limiter on the sti utec version

04-28-2006, 11:08 AM	#10
ride5000 Scooby Guru Member#: 32792 Join Date: Feb 2003 Chapter/Region: NESIC Location: lincoln, ri Vehicle: 2003 GGA MBP 12.9 / 105+	do you have any idea what your afrs are?

04-28-2006, 11:09 AM	#11
ride5000 Scooby Guru Member#: 32792 Join Date: Feb 2003 Chapter/Region: NESIC Location: lincoln, ri Vehicle: 2003 GGA MBP 12.9 / 105+	what are the other mods on the car? big maf? what turbo? seems like you're way rich from what i'm seeing (and assuming) from those logs.

04-29-2006, 12:42 AM	#12
cdvma Scooby Specialist Member#: 21980 Join Date: Jul 2002 Chapter/Region: NESIC Location: Central MA Vehicle: 2002 PSM WRX (Sold) 2009 BMW X5	Yea I thought at first, rich, but he is also running 23 psi on a FP Red so I dunno. You would have to be STUPID rich to stop from reving tho.

04-29-2006, 09:55 AM	#13
mlauto Scooby Newbie Member#: 111502 Join Date: Apr 2006	Two things come to mind-fuel pressure and weak valve springs.

04-30-2006, 05:43 PM	#14
BigBoosting Scooby Newbie Member#: 48553 Join Date: Nov 2003 Chapter/Region: South East Location: Atlanta	Got the car retuned yesterday at TopSpeed. The car still won't rev past 6500, and Doug believes the Utec is the problem. So I'll go back the week after this one to try Ecutek on it to see if that alleviates the problem.

05-02-2006, 01:40 PM	#15
bcblues Scooby Specialist Member#: 17256 Join Date: Apr 2002 Chapter/Region: MWSOC Location: America's Outback Vehicle: 04 STi Blue w/ custom bug splat	What does the "LCM" in the Boost (OL) column mean?

05-02-2006, 01:43 PM	#16
bcblues Scooby Specialist Member#: 17256 Join Date: Apr 2002 Chapter/Region: MWSOC Location: America's Outback Vehicle: 04 STi Blue w/ custom bug splat	I don't think that this is a fix for you, but I had bad hesitation problems with my 04 STi with UTEC at 3500 rpm. I was running 110% or a bit more in the TPS column. I spent a little time calibrating the TPS to 0% and 100% (min/max) and the hesitation went away. I am certain that Doug would have done this for you, but I wanted to post this here for those trying to tune for themselves....

05-03-2006, 01:52 PM	#18
bcblues Scooby Specialist Member#: 17256 Join Date: Apr 2002 Chapter/Region: MWSOC Location: America's Outback Vehicle: 04 STi Blue w/ custom bug splat	Have you tried disabling your launch control? It seems that it is kicking in where it is not supposed to?

05-03-2006, 02:25 PM	#19
ride5000 Scooby Guru Member#: 32792 Join Date: Feb 2003 Chapter/Region: NESIC Location: lincoln, ri Vehicle: 2003 GGA MBP 12.9 / 105+	lcm should/will appear whenever rpms exceeds the value programmed into the utec, and the external switch contacts are closed. he's rolled off the gas and put in the clutch. i see the same thing in my logs.

05-25-2006, 03:02 PM	#20
supermarkus Scooby Guru Member#: 6971 Join Date: May 2001 Location: Edmonds, Washington, USA Vehicle: 2008 WRX STi SSM	did this ever get resolved?