Turbo drive! and a question

[Hondavtec4208]

Just took out my car today FINALLY turbo'd with no exhaust. Only running 6PSI and I am VERY happy with it. Spins alll through 1st "from a 10mph roll" and alot into 2nd UNTUNED with Alright Potenza tires. I am still amazed.

I never thought that 6PSI could feel like so much Ide love to go to 8 but im at 190K so I think ill leave her at 6.

For those of you looking into buying turbo parts DO IT! It is worth every damn penny that you will spend on it, and all of the trouble.

Now all I need is a downpipe.

And a quick question. I never though my car got a reading from the oxygen sensor before the turbo, and now with my datalogging program I dont get a reading on there either, so I know something is wrong. The sensor is new and its pissing me off... I need a wideband anyway, but if you have any suggestions as to what is wrong, then help me out.


Thanks.

[92ex]

if your o2 sensor didn't work, your car would be barely running. are you sure you have everything wired/connected right for the readings?

and out of curiousity, what turbo do you have?

[d112crzy]

so you are boosting untuned? I wonder how long its gona be till the "my engine blew" thread.

and how do you expect to datalog from your stock o2? you need a damn wideband.

[h22sparkle]

Boosting is good untuned boosting is bad. Dont boost while untuned please. I know it may be hard for you not to boost while its untuned but please try

[maroonaccord2.2]

so you are boosting untuned? I wonder how long its gona be till the "my engine blew" thread.

and how do you expect to datalog from your stock o2? you need a damn wideband.

Hmmm, not too long if he keeps driving around. And the wideband is a must....

[blackice]

Are you running a chipped ecu with a basemap? I assume thats what you mean by "untuned"...

edit: I really hope you aren't running closed loop, because if you are the ecu is going to try to maintain stoich 14.7:1 af ratio which is a no-no when boosting

[Hondavtec4208]

OK. I am runnin a chipped P75 from MRX. Ive only ran it hard for like 10 runs just close to my house just to make sure everything is good and not leaking. The mixture is rich, Which I can tell by the way it drives which is HELLA lot better then lean I KNOW.

I know its not good to do it untuned, and for those of you turbod, it really is hard not to get on it all the time.

And im not planning on tuning with my narrowband O2, I just wished it worked so I know that I am not running lean. I will get a wideband soon im just outta money for now. I guess all I can really do is take it easy for now

And I am running an IHI RHB5 turbo off of an mx6/probe.

[ACC0RD22]

Im sorry, but p75? do you mean p72?

[Hondavtec4208]

i dono, ive been confused too, but seriously i looked like 65 times on the ecu and it specificly says p75 and im like wtf? maybe i read wrong i dono.

[Hondavtec4208]

also to "blackice" up top asked if im running closed loop? how could I if my ecu isnt reading the o2?

[93accordexcoupe]

if u have no exhaust, where is the o2 sensor plugged in?

[Hondavtec4208]

The turbo has like a 6" long "downpipe" coming off the turbo that is supposed to connect to the actual downpipe of the mx6/probe. and right up top of that is a place to put your oxygen sensor.

[d112crzy]

blackice meant if the box in uberdata for o2 disable is checked.

and its pretty damn hard to tune with your narrow band.

and being rich is not necessarily better than being lean. theres a point where you can also detonate for being to rich.

[Hondavtec4208]

Detionation from being rich? hmm?

yea well I dont have a chip burner, MRX chipped the ecu "so I dont know if the 02 is disabled?" and im just running off his basemap and im just gonna get a wideband, and tune it with my SAFC, Ill probly just ask him if it is, unless you guys know? or unless he finds this post within the next couple days.

but then again when I was just N/A, the A/F ratio gague never bounced back and fourth like other cars do? I think this is because the ECU never got a reading from the o2, and was running just as if the sensor failed, Because with it unplugged I NEVER got a CEL for not having it, and the car ran just fine without it.

I am almost positive something is wrong with the wiring that is going to the sensor to the ECU, so I think I will just replace it all.

[mullet]

Im sorry, but p75? do you mean p72?

P75's can be chipped to run Uber, I have one at home for a backup to my P06 but I was using it for a while just fine