Possible help 98 legacy gt

[william96]

I dont know if this is okay or not. Im stumped and wondering if anyone has had this or a similar issue. I have a 98 legacy gt,runs great, until its 80 degrees and above outside then randomly dies. Acts like a fuel issue, only codes thrown are maf and o2. I replaced the maf did better for about a month. Now back @ it. After sitting ten minutes fires right back up and goes maybe 5 miles and this continues over and over, under 80 degrees outside has no issue. Doesn't overheat, all fluid levels are spot on.

 

[Dick Foster]

I know it's rare these days with FE engines, but I'd think vapor lock and look at the fuel system. Maybe the fuel pressure regulator or something along those lines.