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cavemancan · 07-23-2012, 10:14 PM

I did some searching and I was not able to find a similar thread so here goes.

I went ahead and removed the muffler to save some weight and get some good noise. Ever since then I've been running extremely rich. I would say about 280 miles per tank of fuel (I used to average 310 to 340). So I did some research and I tried the "Idle Air Volume learning" procedure but to be honest I am sure I screwed it up:

2003-2011 Nissan 350Z - 370Z Idle Air Volume Learning Procedure | Nissanhelp.com

I can further prove this rich condition due to the fact that I had a dyno on the same day of the muffler delete and the shop tech told me I was running extremely rich.

Dyno:

Notice the TON of torque...I must have a v8 for like 1 whole second...LMAO!!

So my question is am I forced to get a tune? or is there another reset procedure I can run? Did I do the above mentioned procedure wrong? Etc?

EDIT: note that the pull showing the most power is with the filters removed.

07-23-2012, 10:14 PM	#1 (permalink)
cavemancan Enthusiast Member Join Date: Mar 2012 Location: Miami Posts: 302 Drives: 09 370Z TourSport MT Rep Power: 249	Muffler delete equals Rich condition I did some searching and I was not able to find a similar thread so here goes. I went ahead and removed the muffler to save some weight and get some good noise. Ever since then I've been running extremely rich. I would say about 280 miles per tank of fuel (I used to average 310 to 340). So I did some research and I tried the "Idle Air Volume learning" procedure but to be honest I am sure I screwed it up: 2003-2011 Nissan 350Z - 370Z Idle Air Volume Learning Procedure \| Nissanhelp.com I can further prove this rich condition due to the fact that I had a dyno on the same day of the muffler delete and the shop tech told me I was running extremely rich. Dyno: Notice the TON of torque...I must have a v8 for like 1 whole second...LMAO!! So my question is am I forced to get a tune? or is there another reset procedure I can run? Did I do the above mentioned procedure wrong? Etc? EDIT: note that the pull showing the most power is with the filters removed. __________________ Mazda Rx8 MT Titanium - SOLD! 2009 370Z T-Sport MT Black - Takeda Intake, Swift springs, Rear Camber kit, SS B Lines, FI Exhaust, Z Speed CMAK Flywheel/Clutch Kit, Stillen Brake Cooling. Last edited by cavemancan; 07-23-2012 at 10:21 PM.