Harvis

Universal Oxygen Sensor Bypass Simulator V2 w/ Heater
http://cgi.ebay.com/ebaymotors/Unive...mZ180450477696


does anyone had tested?

im dessesparate becuase in my country no one have accesport is very expesive to buy it for myself, im looking another way to make my check engine wont come on.

give your opinions pls

MazdaManiac

iTrader: (3)

Wont work.

If you are in Europe or Asia, the weak US dollar makes the AccessPORT more affordable.

bse50

What MM said.
Fortunately, or unfortunately, our stock ECU is pretty intelligent.

Harvis

i live in dominican republic , i think my rx8 is from usa

TeamRX8

iTrader: (25)

Put a catalytic converter on it, problem solved

http://www.davesport.com/cgi-bin/davesport/DCAT100.html



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MazdaManiac

iTrader: (3)

I don't understand the love for catalyst from some people.

The HC and N stuff can be largely tuned out. I had several cars pass sniffer tests in Maryland without a CAT because of the tune.

TeamRX8

iTrader: (25)

It's not the inhibitor to performance that some people think/claim. Look at GeorgeHs and my Dyno graphs as proof. Plenty of catless polluters running around making less power than that. We've proven it can be done.

It also protects the air we breathe over a wider range of circustances than just a tune. Some of us accept the simple fact that many of the resources we were brought to think as being limitless are in fact limited and precious for the purpose of sustaining a decent life.

Harvis

so are you sure this o2 simulator wont work :s ??

JinDesu

iTrader: (2)

Lol.. yes, the RX-8's ECU is too intelligent to be fooled by this simulator

alz0rz

iTrader: (41)

No, the ECU constantly sends varying voltages to the rear OEM sensor to check CAT efficiency. A $45 circuit is not going to fool it. Though I don't imagine it's really hard to do for someone with the knowhow and required parts.

MazdaManiac

iTrader: (3)

So many things factually tangential (and emotionally-based) with this post that I can't (and won't) even begin to address it.

Harvis

sorry guys cuz im a noob but about the catalyt converter , if i buy the agency power cat delete , this catatlyt converte goes with the cat delete together, both plugged

TeamRX8

iTrader: (25)

Nobody ever said that you're not a smart guy .....





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GaMEChld

I'll post this message here, but it was originally a PM to MM, but his mailbox is full. Any answer may be helpful to others anyway.
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Hey MM,

I got an AccessPort from you a while back. While i was able to eliminate my engine codes from having the Esmeril Turbo Kit as well as a straight pipe, I still cannot pass an OBDII emissions test because several systems are showing up as "Incomplete" instead of Ready, or even Fail; as if the computer did not have enough drive cycles logged even though I had driven for a long time.

I was looking into O2 sensor simulators but I've seen several of your posts saying that they will not work on the RX-8.

Is there anyway to tweak the AccessPort to solve this problem? Or do you have any other advice or suggestions I can pursue?

Thanks for the help

MazdaManiac

iTrader: (3)

Incomplete instead of ready should be solved by getting more drive cycles in.
I think Brettus had a similar problem recently (or someone else, I can't remember) and it was a bad sensor causing it.

otakurx

They are right there well for the most part, the stock ECU has some good logic on paper for preforming compares between O2 sensors to judge catalyst efficiency and the operation of the secondary air system. The issue I've been able to locate is simply the transition from paper and white board to source code just didn't go well. I've been able to find a few errors in the code and algorithms used. The only thing I could think of is that they tried a little to hard with streamlining the code for optimum performance on the 45Mhz SH-2 processor the car uses or the pointers to memory locations are off. With more then 300,000 lines of code in the main firmware tho I still have a lot more to go through before I can really pick out any bugs.

Ya, I have a bit of spare time on my hands and a crazy interest in combining my talents as a Systems Engineer/Software Engineer and love of cars.

GaMEChld

Ah thanks for that MM. I do think one of the sensors may have been disconnected during the turbo install, and I just assumed that the AP killing the codes would make that irrelevant, but that makes sense.

Now I'll just need to figure out how to hook that back up since I remember it being a really annoying connection that followed the transmission down or something :P

Thanks again good sir.

stinksause

iTrader: (5)

Hey man, I am pursuing an informational systems engineering degree and I would love to take a look at the source code ... how did you get it off? PM me? What language is it in? I bet you can do some amazing stuff with decoding it other than engine management ... like unlocking some of the otherwise hidden features for USDM cars