I took my 94 fzj80 to change spark plugs and distributor cap and rotor, and found out that the air intake has a vaccum leak. According to the mechanic causes sensor to send the wrong signal therfore more gas. currently givin me 9 miles /gal. It sucks the question is what are my choices to fix this problem. I am avoiding the delership any suggestions Is he right oh by the way the spark plugs wires are expensive originals 131.00 dollars oreili´s 72.00 anyftermarket or good quality wires 131.00 for yota wires is expensive hope to hear from you all soon thanks!