Can there be codes without Check Engine Light on?
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Posting Guru
Joined: Oct 2006
Posts: 1,693
Likes: 7
From: Francestown, NH
Can there be codes without Check Engine Light on?
I don't have a check engine light on, but there's a problem with something in the engine.
Can there be codes or such that wouldn't turn the CEL on?
I'm considering ordering an edge insight cts this weekend. Would something like this be able to see these codes or notifications or what ever they are?
Thanks.
Can there be codes or such that wouldn't turn the CEL on?
I'm considering ordering an edge insight cts this weekend. Would something like this be able to see these codes or notifications or what ever they are?
Thanks.
Hotshot
Joined: Dec 2003
Posts: 15,368
Likes: 121
From: Stuttgart, Ar
My SGII doesn't read my codes for whatever reason, but a good scanner should. I use an OLD diablo predator that does a great job of code scanning and some diagnostics. On the 03/04 trucks there are a LOT of codes that don't pop a CEL.
Posting Guru
Joined: Sep 2009
Posts: 1,441
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Damn, can't win. That makes me worry now. thanks NC. (rep'd you)
Hotshot
Joined: Dec 2003
Posts: 15,368
Likes: 121
From: Stuttgart, Ar
What do you use for a scanner? I tried again with my SG2 this morning--it showed nothing. Predator showed the two usual codes I always have, 3 EGR codes and a GPCM code (unexpected, kinda).
Thanks for the reps!!
Thanks for the reps!!
Hotshot
Joined: Jul 2005
Posts: 13,834
Likes: 25
From: Middle Tn.
My 05 had no CEL but had a turbo code. Ford ended up replacing the turbo. The truck also ran good. Just happened to check for codes with a new reader.
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Hotshot
Joined: Apr 2010
Posts: 19,055
Likes: 235
From: Saratoga Springs,UT
when I got my scangauge II i noticed the mpg was way off 1 mpg or 9999 mpg bouncing all over the place. call up scan gauge went through the setup with them. setup ok. they told me that they had a unit that was programmed more specific to my truck (03) got the new unit and things worked as advertised. you may want to ask them about it
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