# Dumbest question ever? Maybe =)

Posted by mentat (93se 5spd) on September 15, 2002 at 15:43:18:

Ok try not to hit me with something for asking this, but if the check engine light is off, will running an ECU diagnostic tell me anything at all? I mean are there some codes that i might get that would not have actually turned on the check engine light? Nothing wrong that I know of or anything, just bored and curious.

m@

Replys:

- You bet... god for it! Never know what you may find. Tricky part is there can be bad sensors that don't store ANY codes n/m RosenKen (93 SE 5spd) 15:51:47 9/15/2002 (1)
  - Um... that's "go" for it :) n/m RosenKen (93 SE 5spd) 19:02:08 9/15/2002 (0)

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: Ok try not to hit me with something for asking this, but if the check engine light is off, will running an ECU diagnostic tell me anything at all? I mean are there some codes that i might get that would not have actually turned on the check engine light? Nothing wrong that I know of or anything, just bored and curious. : : m@