If you have long term idle fuel trims between -4% and -6%, you should ______. (fill in the blank)
#1
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Other than the most obvious (check for leaks and bad MAF)
Car is homebrewed-modded stock airbox, 90mm Buehn MAF with bosch sensor, lightning 42 lb injectors
Car is homebrewed-modded stock airbox, 90mm Buehn MAF with bosch sensor, lightning 42 lb injectors
#3
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This is really dependent on your idle g/s... with such a modded intake tract, could be normal. You also may need O2's sometime in the future, but unless you have another problem... leave it alone.
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