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my first log, need advice.

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civickiller

15+ Year Contributor
119
0
Nov 6, 2004
Salem, Oregon
3rd gear pull

RPM O2v Timing

1280 .00 22
1560 .00 23
1812 .00 26
2100 .00 28
2328 .00 30
2568 .00 29
2824 .00 29
3120 .00 28
3484 .00 27
3892 .00 20
4512 .07 14
5444 .25 21
6484 .11 26
6868 .07 38



I know my O2 sensor is dead, but i need some input on my timing



P.S. when i cruse around town at 2000-2500 rpm i get constant 27-31 of timing, what should i do about it?
 
xcelr8n said:
Is that even a WOT pull?

Yes my o2 sensor is dead :notgood: thats why it did not register at lower rpms.
When i replace the sensor, will my timing go down?
 
CanadianTSi said:
Timing is really high probably because the o2 is dead, I would keep away from WOT until you get a new o2.


The O2 sensor is not used at WOT. The ECU doesn't care about O2 voltage at that point. It calculates Air Mass from a couple of different things (air flow, barometric pressure, intake air temp, etc) and determines the "correct" amount of fuel to inject.

But really, go out an buy a new O2 sensor.
 
That log doesn't look very complete. It kind of jumps from 4500 to 5500 to 6500, with nothing in between. That timing looks very hight to me for a wot log, I can't really tell if it's knocking but the timing seems to be rising the whole time you are boosting which is good, but its really high. Are you using stock injectors? What are you using to tune with and how much boost are you running?
 
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