GaleForce's build

Mitco39

Who tuned your Z? Yours idles nice and smooth around 14.7? With no loping or leaning out? If yours is running uprev and thats the case then that just means I have to play with mine until I figure out what exactly is causing it on mine (and other cars).

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2007 Chevy Duramax - EFILive Tuned By Me
2010 40th W/ Nav - Boosted Performance - UpRev Tuned By Me
The Mrs. Ride -2012 335XI N55 BMW - Cobb Tuned By Me, Built by her
My Build --> http://www.the370z.com/members-370z-...39s-build.html

jwick

I'm also going for a retune again in the next few months. any feedback I could give my tuner might help. anybody willing to weld an O2 to the other header pipe, relocate and test your theory?

I'd volunteer but my entire crossover header pipe is header wrapped and it was a pita. I don't want to undue and reward for trial.

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'10 G37T 6MT Graphite/Graphite - BP - G37T Build

09 Nismo#400

Just thought I would add my two cents to this. I have been going a bit crazy due to this. Like others have stated it is a bit better now after getting a tune then what it was on the base map. It hunts at idle all the time, idle Afr on mine is between 15.2-14.2 so if someone finds a solution please let me know. I am glad now that I am not the only one.

Cell

Eli @ Project X Customs tuned my car.

Before getting it tuned, I had the exact same symptoms everyone else is having here. My idle would drop between 50-150 and it feels like the car is trying to fight to bring it back up. The AFR would also bounce up and down between lean and rich. I do not remember how big of a bounce it was but it was enough for me to see that it is not normal.

Now, after the tune, the AFR still bounces but not as drastic as on the base map. The idle is far more consistent and feels normal now.

I will need to jump back in my car and really pay attention this time around to see how it is as I haven't really paid much attention to it. Mostly because it hasn't been an issue.

Here is a video I made when I was running the base map. It doesn't show it dipping much because I didn't rev it but it does show that it is bouncing about 50 rpm.