knuckles899

iTrader: (1)

Hey everyone, I usually find what I'm looking for by searching but wanted current input.

I spoke to Uprev and they wanted me to compile a list of DTC's I want to disable for my Osiris Standard reflash they are going to send. Vehicle is 08 350z hr test pipes exhaust and intake. I figured the most common to disable would be the cat codes but there seems to be quite a few others listed here on this other thread I found here

https://my350z.com/forum/maintenance...d-generic.html

This is just a few from the list

P0420 Catalyst System Efficiency Below Threshold (Bank 1)
P0421 Warm Up Catalyst Efficiency Below Threshold (Bank 1)
P0422 Main Catalyst Efficiency Below Threshold (Bank 1)
P0423 Heated Catalyst Efficiency Below Threshold (Bank 1)
P0424 Heated Catalyst Temperature Below Threshold (Bank 1)
P0425 Catalyst Temperature Sensor (Bank 1)
P0426 Catalyst Temperature Sensor Range/Performance (Bank 1)
P0427 Catalyst Temperature Sensor Low Input (Bank 1)
P0428 Catalyst Temperature Sensor High Input (Bank 1)
P0429 Catalyst Heater Control Circuit (Bank 1)
P0430 Catalyst System Efficiency Below Threshold (Bank 2)
P0431 Warm Up Catalyst Efficiency Below Threshold (Bank 2)
P0432 Main Catalyst Efficiency Below Threshold (Bank 2)
P0433 Heated Catalyst Efficiency Below Threshold (Bank 2)
P0434 Heated Catalyst Temperature Below Threshold (Bank 2)
P0435 Catalyst Temperature Sensor (Bank 2)
P0436 Catalyst Temperature Sensor Range/Performance (Bank 2)
P0437 Catalyst Temperature Sensor Low Input (Bank 2)
P0438 Catalyst Temperature Sensor High Input (Bank 2)
P0439 Catalyst Heater Control Circuit (Bank 2)

I found that another member disabled these DTC's on his 04.5 g35

P0011 intake cam timing
P0021
P0171 system too lean bank 1
P0172 system too rich bank 1
P0174 2 lean b2
P0175 2 rich b2
P0441 evap ctrl sys incorrect purge flow
P0442 evap ctrl sys small leak detected
P0456 eval small leak detected
P1148 closed loop b1
P1168 closed loop b2
P1276 af sensor high voltage b1s1
P1278 af sensor slow response b1s1
P1279
P1286 af sensor b2s1
P1288
P1289

Sorry for the long post...... I just cant really find what I'm searching for and don't want to disable anything that would hinder any performance in any way.

Any guidance or advice is appreciated

BigBlue

iTrader: (4)

I had the PO507 "idle higher than expected" (I've seen that description on Cipher) disabled by my Tuner. I had a high idle issue that is now fixed, it kept throwing that code. That is a pretty common code on the HRs with dual TBs (tech at Stillen told me). No problem to have that one disabled if your idle rpms are in a good zone.

knuckles899

iTrader: (1)

Good call! I'm going to add that to the list thank you

knuckles899

iTrader: (1)

I wanted to bump this

So disable P0420 P0430 Cat efficiency below threshold banks 1 and 2. PO507 "idle higher than expected........any others I should disable can any tuners chime in?

seymore4

iTrader: (27)

Unless there's something wrong with it you should only need to disable P0420 and P0430 for the test pipes

rcdash

iTrader: (18)

you do realize you will not pass inspection? several of those DTCs are involved in OBDII readiness... just fyi

knuckles899

iTrader: (1)

Yeah I would fail inspections with DTC's disabled on my tuned map but i can always flash my stock ROM back to my ECU then drive a little bit and get it smogged...................at least I think I can.

str8dum1

iTrader: (11)

then why disable any codes at all. you are just disabling the emissions.

if you are tuning with uprev, you should not get any mechanical codes (hi idle, cams etc) since you are programming new values in.

If you get any mechanical codes, that means something is really wrong.

If you are running another ECU piggyback, then yes it makes sense to disable any of the mechanical codes.