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Old 11-27-2012, 05:08 PM   #1
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running lean??

So i was told by a mechanic that my car is running lean and that it could be the JLT CAI or the tune..... any one else run into this??
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Old 11-27-2012, 05:12 PM   #2
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Check your tune. If you use a CAI without tune it will cause a higher air mixture to fuel ratio (hence the term running "lean"). I suggest returning your car to stock with your tuner and then reflashing to the tune you want. This makes sure you start from a clean flash instead of reflashing a bad tune. You must do this soon. Running lean is bad for your engine.
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Old 11-28-2012, 11:47 PM   #3
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Quote:
Originally Posted by 2008crna
Check your tune. If you use a CAI without tune it will cause a higher air mixture to fuel ratio (hence the term running "lean"). I suggest returning your car to stock with your tuner and then reflashing to the tune you want. This makes sure you start from a clean flash instead of reflashing a bad tune. You must do this soon. Running lean is bad for your engine.
+1

And if you have the option, send in any data logs to whoever does your tune and have them update it. This is popular with the 2011+ guys that have Bama tunes
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