Code P0452, Fuel Tank Drop

[HUMTECH]

I would bet on ftp sensor or a bad circuit before ecm. Never seen an ecm cause this particular code. If you did need a ecm you need dealer to install and program it. If you install it you would have to tow it to dealer as it wont start. you should be able to get to sensor if you just lower tank about 4 or so inches. you can easily build a jig to hold tank and attach it to a floor jack that way you don't end up dropping the tank and breaking anything.