ECMlink 2g DSMLink tuning issues!!!

[scottsee]

RRE has really nice gaskets for almost $ nothing. You could pick up some cork gasket, I've used it on a couple small street turbo's, and as long as your not raceing it 100% all the time, it should work nice an dandy.. SS gaskets need suuuuper smooth surfaces, your better off just not using one.

 

[mnetwork]

I'm looking into that copper one now.. That looks like it would crush well. Cork would just burn up, I wouldn't use that.

 

[UofACATS]

Make sure to grab a log next time out.

 

[mnetwork]

I've been taking logs... I'm fixing issues right now. I have other logs posted up..

 

[mnetwork]

Ok... manifold came yesterday.. Finished everything today. Love the new manifold by the way. Seafoam'd right after install, NO SMOKE until the muffler. Before the new manifold there was smoke pouring out of the turbo to manifold gasket, the front o2 sensor, and the crack in the manifold.

Did pulls, pretty much the same thing... 3rd gear pulls will yield mid to high 10's afrs, but if I just punch it in 5th and I'm not high up in the RPMs in 5th AFR's will show up lean. If I step on it in 5th gear but keep the wastegate closed by not going WOT AFR's stay in low 10's. I'm thinking about buying a new WB o2 Sensor, but I don't know if this is a good idea... Does this kind of issue sound like an o2 sensor issue?

 

[mnetwork]

Well, no one answered so I bought a new sensor. It comes tomorrow. $70 shipped from ExtremePSI isn't that bad. Worst comes to worst, I'll just sell it. I'll post up tomorrow my results...

 

[mnetwork]

Ok.. replaced the wideband o2 sensor.. nothing changed... I just want to mention that I have both a manifold mounted external wastegate and my wideband is placed in the stock rear o2 sensor location. Could it be that the sensor is too far?

 

[blcknspo0ln]

No, I run mine in the same spot. Do a new full third gear log and post up. I'm still confused why you're so intensely worried about 5th gear low rpm WOT pulls?

 

[mnetwork]

Because even 3rd gear as you say should still be pinned at 10.0 with fuel settings on 0, but it shows mid 10's on the pull.

 

[ImportWarrior]

i was wondering if you ever calibrated the WB-02 sensor to open air. or AEM does not require this like a LC-1 02 sensor.

 

[mnetwork]

AEM doesn't...

 

[mnetwork]

I've been tuning my car for a while now (used a dyno's wideband), but I JUST fixed my wideband two days ago. It wound up being the placement of the sensor. I had a bung welded right after the bend in my downpipe before the flex pipe and now it works fine. Everyone told me that it would make no difference (had it in the rear o2 location) because a sample is a sample, but when the wastegate opened up it always went crazy. Wideband works flawlessly now.