Anyone have a clue why my truck randomly goes into limp mode?
I have a 2007 Dodge Ram 3500 with the deletes done and a basic HP tune. Even
before the tune I would be driving along and suddenly lose power and noticed my Turbo
isn't boosting over 6-8 lbs. The only way I have figured out how to get the CPU to
reset and get my power back is to shut down the engine, pull the lead to the MAP
Sensor with the key on, shut the key off and plug it back, finally turn on the key and
start the truck. I get the check engine light and lightning bolt but they disappear again
on their own.
Dodge blames the programer and the deletes but I know its not that. I don't want to
waste money on a MAP Sensor if it works under most situations. Its a very random
thing. It might do it to me once a day, twice a day, and then not for months. It has to
be some kind of error the computer sees from a sensor somewhere and throws it into
limp mode. And "limp" doesn't begin to describe the lack of power until reset.
Did you get this figured out? Happens to me on my 2012 3500. Dealer has changed a million different things. Now its currently in shop and he is going to replace the tranny harness. Wish me luck!
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