Help with some logs

[SSimple]

Just to give everyone a background of my car, Its a 91 TSI AWD. I've rebuilt the motor, and i've got about 700 miles on it so far. Mods include

Ross 8.5:1 forged pistions
Ross rings
ARP Headstuds
Cometic HG
ARP Rod bolts
Engine was fully balanced, bored .30 over, machine honed w/ torque plate.
Revised Lifters
Balance Shafts Removed
Prothane Motormounts
16g Turbo
Almost everything on this motor is brand new Ex.
Knock Sensor
O2 Sensor
TPS Sensor
Oil Pump
Front Case
Ect Ect

and the list goes on, but thats at least everything that could be relavent to my knocking problem.


I log with MMCD, and ever since day one after i got her back together I've been having a knock problem. My assumption upon first look at the logs was that it was running lean. However since i'm only running a small 16g at the moment, and only 9 PSI, I was guessing my fuel pump was not pumping like it should, and causing it to run a bit lean. So i replaced it. Ran the logs, and I got the same thing.


Here are some logs for everyone to look at

This is a 3rd gear pull, I have not taken it into the high RPMs yet, since its still kinda new. But just from 3k - 5k you can see the problem, and i dont think it will look much better from 5k - 7k


TPS RPM TIMA KNCK O2-R INJP DTC
54.5% 3219 27° 0 0.37V 8.19ms 28
70.2% 3281 24° 0 0.70V 9.73ms 34
76.5% 3344 20° 1 0.76V 11.52ms 41
78.0% 3438 18° 1 0.76V 13.57ms 49
78.8% 3500 15° 5 0.78V 14.34ms 53
79.2% 3625 11° 5 0.74V 14.59ms 56
79.6% 3719 12° 4 0.74V 14.59ms 57
80.0% 3844 12° 4 0.76V 14.59ms 59
80.4% 3875 12° 3 0.74V 14.85ms 61
80.8% 4000 14° 10 0.74V 14.85ms 63
80.8% 4094 11° 10 0.76V 15.36ms 67
81.2% 4156 10° 16 0.78V 15.36ms 68
81.2% 4188 9° 23 0.78V 16.13ms 72
81.6% 4406 6° 22 0.80V 16.38ms 77
81.2% 4563 5° 22 0.80V 16.38ms 79
81.2% 4469 5° 22 0.80V 16.64ms 79
81.6% 4594 5° 28 0.80V 16.38ms 80
81.6% 4688 3° 30 0.80V 16.90ms 84
81.6% 4656 2° 29 0.80V 17.15ms 85
81.6% 4781 4° 29 0.80V 16.90ms 86
12.2% 4625 4° 28 0.82V 2.30ms 11
10.6% 4344 35° 4 0.23V 1.28ms 5
10.6% 4063 42° 0 0.14V 1.28ms 5
10.6% 3656 41° 0 0.10V 1.28ms 5



Pretty nasty eh? This was done at only 9 PSI. Any idea's? I can post more if needed, Please help

 

[ryanman]

Why are you not gettng 100% throttle? You holding it back?

 

[rowlex]

Add more fuel. Your o2 values need to be around .92 at WOT

 

[SSimple]

as far at the TPS, I've messed and messed with the trottle cable, trying to get it to open all the way, and it just wont, Its almost like the cable is stretched out or something. I read somewhere that anything over 75% or something is concidered WOT by the ECU, not sure if its true, but thats why i've put that problem on the back burner for the moment.


About the fuel, I dont have a AFC to do that with. All of my induction and exhaust is Stock right now, so i'm not sure why i need more fuel. The stock fuel system should be able to handle it should it not? again its only 9psi on a small 16g. The real twist is that i get the same results with two different fuel pumps. What else could cause it to lean out like this?

 

[fourg63_gst]

I say don't worry about your 02, In my opinion there complelty worthless to go by