Just got out fj60 back from the shop. they had to do alot of work to get it to pass inspection, which included almost an entire ne exhuast system. when i turn the truck off it doesnt totally cut off. kinda rumbles for a second. i assume this is in the fuel cutoff selnoid. although the 60 has done this forever. hasnt been a big issue. but now it backfires like a 12 gauge shotgun whenever i cut it off..its so embarasing any ideas of what is wrong. also after it has warmed up whenever i push the clutch in the revs super high. like to 2000-2500 rpm's the shop didnt know how to fix it i guess. well thanks. i need to solution to both the backfireing and reving problems. thanks again
