OEM Codes:
P2195 Oxygen sensor inactive (bank1 sensor1)
P0133 Oxygen sensor slow response (bank1 sensor1)
p0420 3 way converter (bank 1) whatever the hell that is...

OBD system codes... don't know why ECUflash wouldn't bring these up but...

P0420 Catalyst system efficientcy below threshold (bank1)
P0133 02 sensor circuit slow response
p2195 02 sensor signal biased/stuck lean (bank1sensor1)

AFR at idle:

It's prety rough

WideBandAF
0
14.6706
14.7
14.3031
14.3766
14.3178
14.406
14.3619
14.3913
14.259
14.2296
14.2737
14.1561
14.3619
14.2737
14.2443
14.2296
14.4354
14.553
14.4648
14.7735
14.847
14.9793
15.1263
14.5089
14.5677
14.5236
14.4795
14.4942
14.4207
14.4942
14.1855
14.3178
14.3766
14.2296
14.2884
14.3472
14.2443
14.4354
14.1855
14.4207
14.4501
14.3178
14.4501
14.4942
14.4648
14.6412
14.7588
14.9352
15.0675
15.0675
15.0969
15.1704
15.2586
15.2586
15.2439
15.2586
15.2586
15.2145
15.1998
15.1116
15.0381
15.0528
15.0528
15.0381
14.9646
14.8323
14.7147
14.8617
14.7294
14.6853
14.553
14.6559
14.4501
14.3325
14.4354
14.3472
14.406
14.3472
14.2149
14.2443
14.2002
14.3325
14.2737
14.4207
14.553
14.5089
14.4354
14.4354
14.5089
14.4795
14.8323
14.8764
14.8764
14.9058
14.8176
14.994
15.2586
15.3321
15.4056
15.4203
15.4203
15.3762
15.3174
15.1704
15.141
14.7294
15.0969
15.0528
14.9058
14.9058
14.7882
14.7882
14.5089
14.7588
14.6706
14.6706
14.6559
14.6118
14.6412
14.5824
14.4648
14.2149
14.3766
14.3766
14.3472
14.3031
14.3325
14.4354
13.8768
14.3178
14.3913
14.4207
14.3619
14.3913
14.3472
14.2884
14.3178
14.4648
14.4648
14.5089
14.6412
14.7588
14.9205
14.9646
15.1263
15.1263
15.2292
15.2733
15.2145
15.1998
15.1998
15.141
15.2145
15.1851
15.1704
15.1557
15.1704
14.994
15.0234
14.8911
14.9646
14.8323
14.847
14.6853
14.6265
14.6412
14.7
14.5236
14.7441
14.4501
14.6412
14.5971
14.4795
14.5971
14.5089
14.3766
14.3619
14.1708
14.1561
13.9944
14.2296
14.1855
14.0679
14.3619
14.2737
14.3031
14.2737
14.3766
14.2296
14.1561
14.259
14.3913
14.406
14.259
14.3766
14.3766
14.7441
14.7147
14.8911
14.9205
14.994
15.0381
15.141
15.3027
15.3321
15.2733
15.2145
15.0675
15.1998
15.0969
15.141
15.0381
14.9499
14.9058
14.7735
14.5824
14.5089
14.4795
14.5824
14.4795
14.5677
14.5236
14.4501
14.5236
14.2296
14.4795
14.3472
14.3766
14.4354
14.4942
14.4207
14.4942
14.4648
14.6853
14.7882
14.7735
14.7588
14.8323
14.9352
15.0528
14.9793
15.2292
15.2439
15.1851
15.0969
15.0969
15.0969
14.6118
14.8764
14.9646
15.2292
15.1557
14.6706
14.7441
14.7588
14.6559
14.6265
14.5236
14.3766
14.4942
14.4648
14.3766
14.3913
14.3031
14.0532
14.2737
14.1414
14.0238
14.1561
14.1855
14.2296
14.4795
14.2884
14.3325
14.4501
14.5677
14.7147
14.8617
14.8911
15.0675
14.9058
14.8323
15.0675
15.1851
15.2439
15.2439
15.3027
15.288
15.1851
15.1116
15.0528
15.0381
14.994
14.9352
15.0087
14.8911
14.9205
14.5971
14.5383
14.7882
14.6559
14.6118
14.6706
14.6706
14.4207
14.4354
14.2884
14.2002
14.2149
14.2002
14.1708
14.2149
14.2296
14.4648
14.3031
14.2884
14.4795
14.3913
14.5383
14.3619
14.4942
14.8764
14.9205
15.1116
15.1998
15.2439
15.3468
15.4056
15.4791
15.4938
15.4791
15.4938
15.4644
15.4203
15.3615
15.3321
15.2586
15.2439
15.1263
14.8029
14.9499
14.6118
14.6559
14.7588
14.7294
14.6118
14.5971
14.3766
14.5677
14.553

 

P2195 means its using the rear02 to provide trim control instead of the front02.

1) I would check wiring
2) Reset the ECU (to clear the codes)
3) See if they come back
4) Either warranty the car OR buy a new front02 OR take your rear02 and put it in the front (i think they are the same part#)

 

I doubt they will let me warranty it lol. When I try to read the codes from ECUflash it just says "unable to communicate with ECU"... don't get it.

I had a friend read it with one of those pro code readers, and cleared the codes once... it came right back.

 

ECUFlash doesn't read codes.

I am not sure if EvoScan works.

PCMScan does - but its not free.

I would ring mitsu and confirm the part numbers are the same, then go ahead and use your rear02 inplace of the front02

Then check your trims after a while to make sure you didn't kill it by excessive rich condition...

 

Also... i'm on a MBC, could I just flash the stock ROM and see if it still jumps around or if it was tuned while the car had a problem? I know the numbers won't be at stoich, but the idle would at least be normal sounding wouldn't it?

 

Do you have stock injectors?

 

yep, and fuel pump

 

Well then flash the stock ROM back on and see if the problem goes away

why cant you warranty the car?

 

as soon as they see all the stuff on the car they'll void it, and i'm not taking it all off.

 

well I would get under the car and see if there is any damage to the front02 wiring, and make sure its plugged in properly..

 

I did get under it and checked out the wiring to make sure no rocks or anything hit it... it looked fine to me.

Where are the 2 sensors plugged in? I know 1 is under the console right? The other is where?

 

LHD/USDM:

Front02 will come into the passenger footwell, near the left foot - peel back the carpet
Rear02 will come UNDER the passenger seat - peel back the little cutout in the carpet

 

howcome we can't do that trick where we take the 02 sensor and put those things in front of them so it takes the air off it? It worked on the VIII's and IX's.

 

spark plug extenders?

you can - but its a bit hit and miss.

but thats only for the rear02, your front02 is required to be in the exhaust stream and fully functional.

 

ahhh damnit