[Zygoat]

yea i have everything backed up (the stock tune in triplicate). i cleaned my maf less than 6 months ago. i think the exhaust is good.(i know it is from the cat back cuz i just built all of that) can i just keep the car from going closed loop to check for exhaust leeks. how is that done? i believe i just have to raise the closed loop enable temp. as far as vac. where should i measure? is the map reading sufficient?( i don't have a vacuum gage, but i could buy one)

thanks again man.