Maybe the cause of running issues?
Today I was working on the car, cleaning the maf and the air filter, while the filter was drying I was looking around in the engine bay and found this nut that is attached to a wire going into the PVC. Not sure what it is?
I tightned it down and it seamed to run ALOT better afterwards. Is that something that would cause that or would it just be the cleaning of the maf and air filter?
Thanks.






