Got some work done over the winter to include GSC S2 cams and Full Race header. My high flow cat internals went to crap as well. Now when logging my car with Evoscan, my wideband (Zeitronix ZT2) won't go lower than 13.3~ It was tuned by Jestr and it's not really knocking, so I can't believe that it's really that lean based on the map. I really believe the o2 sensor went bad possibly because of the clogged cat. Thoughts?

TPS
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

RPM
2281.25
2343.75
2437.5
2500
2593.75
2718.75
2843.75
2968.75
3156.25
3343.75
3562.5
3843.75
4218.75
4656.25
4968.75
5343.75
5781.25
6156.25
6468.75
6812.5

WideBandAF
16.9
16.6
16.4
16.4
16.1
15.2
14.7
14.5
14.1
13.8
13.8
13.8
14
13.9
14
13.4
13.6
13.6
13.3
13.3

KnockSum
0
0
0
0
0
0
0
0
0
0
0
0
0
3
1
0
0
1
0
1

AFRMAP
14.58604651
14.36335878
14.47384615
14.25454545
13.44
12.97655172
12.62818792
11.47317073
11.26706587
11.06823529
11.00350877
11.06823529
11.13372781
11.00350877
11.00350877
11.06823529
11.13372781
11.00350877
11.13372781
11.13372781

ZTXBoost
0.7
1.1
1.6
2.2
3
3.9
5.2
6.8
9.2
12.6
17.8
25.7
28.1
28.2
28.3
28
27.8
27.4
27.4
27.1

 

def prob clogged or on its way out...

 

The sensor was cleaned out and re-installed before the above readings which is why I think it's gone bad.

 

how did you do this?

how old is your sensor?

wb02 sensors can be had for $70

 

Dry rag along with MAF cleaner ( compressed air ) with dry rag. Probably a year old.