04 with lightning bolt

[kozzy]

Thanks for allowing me to join the forum. I am having some issues. First of all, this ram is my back up truck. I have a 2015 I use for a daily driver. Anyways, I am getting the lightningbolt light. I didn't want to mess with it so I took it to the garage.
They replaced the throttle body.
Problem was still there
They replaced the crankshaft sensor. They told me the 04's throttle position switch and crankshaft sensor were one and the same
Problem still there.
I replaced the battery
Problem still there
They reprogrammed the computer.
Problem still there.
Now they want to replace the computer, I don't think that's the problem. The lightningbolt comes on intermittently and sends the truck into limp mode. If I shut it off and restart it, I am fine for a few miles. My question is, what else could be causing this? Is there another sensor in there that could be bad that they are missing? I don't want to put another $500 dollars in it when I don't think the PCM is the problem.
They checked the wiring and the throttle body ground at the garage.
04 dodge 1500 with the 5.7 hemi.
Any ideas?

 

[FroggyMcNasty]

Here's what the owner's manual says and it does show the "lightning bolt" in the picture.

12. Electronic Throttle Control (ETC) Light 5.7L
Engines Only
This light informs you of a problem with the
Electronic Throttle Control system. If a problem
is detected the light will come on while the
engine is running. If the light remains lit with
the engine running your vehicle will usually be drivable,
however, see your dealer for service as soon as possible.
If the light is flashing when the engine is running,
immediate service is required and you may experience
reduced performance, an elevated/rough idle or engine
stall and your vehicle may require towing. The light will
come on when the ignition is first turned on and remain
on briefly as a bulb check. If the light does not come on
during starting, have the system checked by an authorized
dealer.

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[kozzy]

Yes, I got that from the owners manual. But what else besides the stuff already changed could be causing the light to come on.
It flashes by the way

 

[FroggyMcNasty]

The manual says you may experience rough idle or reduced performance. When was the last time the plugs and wires were changed? I have an 06 so I am just trying to help out all I can. My 03 never had this problem either.

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[electraflh]

my lightning bolt would come on and would go off after a couple of days, no codes on reader, did the key on off test and pulled a egr code, ebay $22 egr valve and all is well

 

[Previs]

Was this ever resolved?
My dad had that issue with his 04 and it turned out to be a broken valve spring. The shop he took it to wanted to replace the computer also but they saw the broken spring when they took a look inside the valve cover.


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