Is the Calmini filter an oiled gauze style filter? If so the problem is probibly that extra oil has been pulled into your intake and coated the wires in your MAF, this is a common complaint with K&N and other oiled gauze filters. To fix this just remove your MAF and using a Qtip clean the wires with some carb cleaner or like solvent. Then replace everything and try it, should fix ya right up. If thats not it, try disconnecting your + battery cable for a few min. to reset the CPU and then reconnect. I hope these help ya out man.;Dr;