air fuel ratio affected?
11-10-2008, 12:24 AM
#1
Staging Lane
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air fuel ratio affected? I have headers, no cats, new 02 sensors, a cutout and i removed the muffler and tips part of my magnaflow catback so its all straight through. Will this hurt my air fuel ratio? I am getting a p1153 code. Could doing this act as an exhaust leak? I also have a ticking sound which many on other threads mentioned an exhaust leak being the reason for the ticking. I did replace my two egr gaskets. I am lost.....
11-11-2008, 03:10 PM
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On The Tree
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ticking is probably from from exhaust, and when you go with a more free flowing exhaust with a stock tune it can cause you to lean out a bit. normally if when you let off the gas with it still in gear at somewhat of a high rpm (~over 2K), and it pops alot, you deff need a tune. you can run the car with a stock tune, but it would be better for the motor if you do get it tuned. plus youll get some HP too. running rich robs power, running lean melts pistons (not good) lol.