No check engine light when I want one!

[Bailey57]

This is a 93 Aerostar with 176K. It went for smog today and even though it passed the sniffer test by a hair, he failed me because he said first that I had a code indicating incorrect timing and then because my check light did not come on. I checked the fuse panel and cannot find a fuse, I then turned the key on to verify no check light before starting. I assume it is the bulb. If I am correct will someone tell me that is the only possibility please!

 

[BrooklynBay]

Welcome to this forum! Check the bulb. It probably burned out because it was always illuminated due to a stored code.

 

[Bailey57]

Thank you, that was correct! Any ideas about why it ran better with timing advanced instead of being at 10 degrees to make the smog guy happy? It coughs a little now, maybe it's because I disconnected the battery to reset the codes I had, 22, 25 and 52? The light Has not come back on by the way.

 

[BrooklynBay]

# 17 in my list of useful threads has a list of EEC-IV code definitions: http://www.explorerforum.com/forums/showthread.php?t=160035. Do you have a timing light?