Is there a PCM reflash available to get rid of this p1740 trans code? I have a pretty tight 89% dtt billet super single and it pops that code about once every 2 weeks. I don't drive my truck hard all the time so thats probably why the computer thinks there is not enough drop in rpm's when it locks up. I'm also not running a lock up switch, no need for one really.
Anyway to get rid of a pesky p1740 code?
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06ramcummins
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I have the same problem and this has been going on for a couple of years. What tranny are you running? i would say its the lockup controller but you don't have one. There is a solinoid in the vavle body that causes this code but I have had no luck with the fix. I can be sitting at a light or just driving down the road and this code comes on. I just reset it and go on. For some weird reason though I haven't had this code pop up in a long time. Good luck with this and I hope you find a solution. I hate when this code comes on when pulling a trailer cause the truck will run very weak.
2007 5.9
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Just keep driving it and learn to ignore it.
Mine will come on almost every week on the same turn under the same conditions. I have just learned to tune it out and after a dozen or so key cycles it goes off until the next time.
I've got a tight Spec-Rite converter and its done it since day one.
Mine will come on almost every week on the same turn under the same conditions. I have just learned to tune it out and after a dozen or so key cycles it goes off until the next time.
I've got a tight Spec-Rite converter and its done it since day one.
maybe your converter is not as tight as mine.
BgBlDodge
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89%. Not the super single though. I think stall was 1600-1700.
Yes, i know. very annoying, especially on customer trucks.
Not sure if it due to the fact that I have been doing most of my driving in Tow/Haul mode for a while now, or maybe accelerating a little harder to the point of lockup when just cruising around, but I have not had the code pop up in a long time.
It seems to be worse when running on higher levels of programming, and driving like a grandpaw (not that there is anything wrong with that).
It would be nice If Marco was able to tell the thing that a larger drop in RPM is not required when hitting lockup, outside of changing the parameters there, I am not positive there is a "sure fire" way to get rid of it if you have it...so I guess it is kinda like Herpes?
It seems to be worse when running on higher levels of programming, and driving like a grandpaw (not that there is anything wrong with that).
It would be nice If Marco was able to tell the thing that a larger drop in RPM is not required when hitting lockup, outside of changing the parameters there, I am not positive there is a "sure fire" way to get rid of it if you have it...so I guess it is kinda like Herpes?