It can depend. They can look closer at the report if they think so.etching may be up and will see N/A instead of ready. And if they are half knowledgeable should know if something is up. But most cases they have to be actively looking to fail you, which does happen.
2001 ZX3 2.0L Zetec-
Hatch Nation #42
Going through Rebuild See "The TICK Build Thread" for details (http://www.focusfanatics.com/forum/showthread.php?t=289168&referrerid=62897)