[ultimateirving]

Alex, a stock z32 maf cannot replace a stock kae maf. So you need to get a stock kae maf, or get a tune to use the z32 maf. Until then it will only idle without the maf if it is indeed bad.

Also a lot of things fresh or inexperienced builders might not notice is if there is a large vacuum leak somewhere. That can cause all sorts of trouble and the best remedy is to boost leak test the whole system to rule out any culprits