Ok here's some backstory:
I have a CP-e DP, CAI and ECUTEK tune. My car is a 2010 Mazda 3 MPS The car has had these mods fitted for about 10 months and had the tune for about 9.
Last week when driving home from a track day, I had a check engine light come on, the code was P0421 Warm up cat efficiency below threshold.
I took it to tunehouse, had the code cleared and they fitted an O2 sensor extension, I think they also patched the ECUTEK software to either remove or be more tolerant of the P0421 code.
Apparently fitting the O2 sensor extension in the Gen 2 basically causes a permanent P2096 error, this fix worked fine for the Gen 1 but the Gen 2 is a lot more temperamental I have since learned.
Now I am getting a CEL again, and have got my hands on a bluetooth ELM327 to have a read and look at the codes. I was expecting a P2096, but the actual code depends on the software package I am using, the screenshot below shows the ones I have used.
http://dl.dropbox.com/u/3223840/Phot...gine Codes.png
As you can see, OBD2007 shows what I was expecting, the P2096 code but the other 2 programs I have used are showing a P0120 code which is some completely different bullshit. Now I don't know what to believe, I was expecting the P2096 one but it is getting outvoted by a 2-1 majority in the shitty software stakes.
Which one do I believe here? I've got a feeling something is misinterpreting a hex number as binary or possibly a bit shift is happening somewhere along the way but I have no real way of knowing without taking my car back in to the shop. I have a better scanner on order so once I can liberate myself from the AWFUL windows software I have to use with this bluetooth scanner I will have a bit more confidence in what I need to do to get this CEL to **** off.
Once I figure out/confirm the P2096 code my first order of business will be to get this stupid O2 sensor extension removed and see if the P0421 code returns. CP-e have already offered to replace my CAT free of charge but I don't want to have to go through removing and posting my DP back and forth across the pacific ocean all for the sake of a CEL that bears no real world consequence.