So I scanned a guy's car today at work with my OBDII scanner, and came up with this code.
P1740 - A Rationality Error Has Been Detected
Riiight....
P1740 - A Rationality Error Has Been Detected
Riiight....
Chrysler code...
- Thread starter Shiroelex
- Start date
lol... thats funny!!
On a more serious note... clear the code then run it then scan it and if you get more different codes... it's the ecm... I've had some of those pop up and that was the outcome... not 100% on your situation but with the few of mine that was the problem...
BTW I love that code... rationality error... good stuff.
On a more serious note... clear the code then run it then scan it and if you get more different codes... it's the ecm... I've had some of those pop up and that was the outcome... not 100% on your situation but with the few of mine that was the problem...
BTW I love that code... rationality error... good stuff.
BurningRubber
10 Year Member
- Dec 6, 2004
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I guess its cause Chrylsers are so sensitive, that it thought you were being irrational in the way you were pulling its codes?
Did you tell it that Fords were better or something...?
Did you tell it that Fords were better or something...?
The problem was dumb. The VSS went bad, and the computer thought the ratio for 1st gear got changed somehow.... It eventually threw that code "First Gear Ratio Incorrect". The guy who owned the car kinda looked at me, and says "Can that just happen while I am driving?"
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