Hey I have my idle set so high that it souns as though i have a vacuum leak and yet im only registering about 700 rpms. Also even though i am not complaining i know its not normal i have cold air intake an a str8 pipe exaust with the idle so high that i am hearing vacuum but am still getting 40-43 miles a gallon. My engine is also shaking really har like there is something wrong with the idle.

Thanks

 

Those always sound like a vacuum cleaner,pretty noisy. Where did you locate the intake air temp sensor? If it is too close to the engine it will heat up and give a false reading. Did you spray the airfilter with silicone or oil? If so clean your MAF hotwire.

 

MAF is clean the air sensor is where the factory left it. an what about the abununt mileage as i sai im not complianing but is that normal ???

 

No,it means your running lean i would assume.