Weak o2 readings and high timing ?

[damentor]

Hello,

I am currently experiencing a situation with the ride(check profile for car info). Anyway, take a look at a some of the log below. A couple things....Shouldn't my o2 be cycling throughout the data there, also that timing is way high if I understand things right. Should I up the boost a bit and that'll drop the timing just as long as it isn't knocking?

Mind you this is with a brand new mitsubishi o2 sensor and mbc set at 16psi with no boost leaks. I was going to do a WOT 3rd gear pull but the trims are pegged at 118.6% and the Timing is sky high and the o2 is acting weird so I didn't want to risk anything. Let me know your thoughts...(Bad ECU?) Thanks in advance.


Log Showing Idle:
TIMA O2-R TPS RPM KNCK

8° 0.00V 10.2% 750 0
8° 0.00V 10.2% 750 0
8° 0.00V 10.2% 750 0
8° 0.00V 10.2% 750 0
8° 0.00V 10.2% 781 0
9° 0.00V 10.2% 781 0
8° 0.00V 10.2% 750 0


Cruising Log:
TIMA O2-R TPS RPM KNCK

35° 0.00V 28.6% 3469 0
35° 0.02V 28.2% 3688 0
36° 0.08V 10.2% 3406 0
40° 0.08V 10.2% 3000 0
39° 0.16V 10.6% 2625 0
38° 0.74V 41.2% 2969 0
32° 0.06V 42.7% 2656 0
28° 0.02V 43.5% 2250 0
26° 0.02V 43.9% 2438 0
27° 0.02V 43.9% 2563 0
27° 0.02V 43.9% 2625 0
28° 0.00V 36.9% 2750 0

[Extra Notes: Wiring is clear from the exhaust and from being melted. So that looks all good. I got similar readings with the brand new bosch I got from napa and put in there about 2 weeks back before I replaced it with the new one saturday.]

 

[blue1]

Put a digital voltmeter on the 02 feed wire and see if the o2 is cycling once it warms up, this way you will see if it is the ECU or not! and also see if the earth on the exhaust is ok strange that two sensors do the same thing. Good luck

 

[damentor]

I know right. After work today I'll manually check the voltage when she's warm. All gaskets around the area between head, exhaust manifold, turbo, and o2 housing are new from mitsu. Although my manifold might be cracking again I'll have to inspect.

[Edit: Ok so I tested the o2 manually with a needle voltage tester found the feed wire and it was cycling what seemed to be decent, mind you it was a needle tester not digital. Looks like I'll pop out my ecu this weekend should do it anyway. On the needle voltage tester what should the settings be set at for proper testing of the feed wire? I had it set at like DC - 50 to get a reading of some kind and it looked to cycle... Is that ok or should I go get a digital one?]