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Technical Info: 3rd Generation: DRIVETRAIN Technical discussion of third generation (2003 - 2007) engine and drivetrain questions, solutions and upgrades.
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Old 02-13-2019
klmahnke's Avatar
klmahnke klmahnke is offline
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Default Whats wrong with her

First off, its been a long time since I have been on here. Life keeps us busy sometimes, anyway...

my 05, 5.9 cummins has been a real pain this last year.

P 2149 Injector bank 2 lo/hi voltage
Truck went into limp mode and I was not able to clear the code. Checked the usual stuff, broken wires, corrosion, loose connections, etc. Took everything apart, cleaned and put back together. Thought what the heck, new batteries too, check injectors for proper function and all appears good. Borrowed a Snap On computer diagnostic reader and was able to clear codes but as soon as I crank the engine the code returns. The truck will fire but runs like crap. As a last resort, I have pulled the computer and had it sent off for trouble shooting and repair. Truck now has 205K miles.

While working on the truck I replaced the Map sensor as I know these can cause all sorts of problems. The plug in has a broken tab so I bought a new pigtail with 4 wires about 8 inches long. Can I solder the new pigtail into the existing wires without messing up the 5 volts going to the sensor?

Looking for input from the experts here.

Did I miss anything, is my computer the problem?
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2005 Ram 2500 Quad Cab Laramie Short Bed 5.9l Cummins
2004 Ram 1500 Quad Cab SLT 5.7l Hemi V8
1998 Ram 1500 Quad Cab Sport 5.9l Magnum V8
1997 Ram 3500 Club Cab Dually SLT 5.9l Cummins
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Old 02-16-2019
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smokediver smokediver is offline
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Sounds like A wiring issue to me, but that's just my
My 07 has acted stupid crazy a couple times..it's in the wiring or the plug to the FCA on the CP3.
When it shorts out it runs like a hot rod idling on a big cam and gives both high and low voltage codes, and high and low rail pressure.
Caught it last time. Wiggle the wires a little and it smoothed out, mess with them some more and it gets stupid again. Also only acted up under damp conditions. Been fine for a while now.
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'07, megacab, 2WD, Dually, 6.7, auto,
Deleted, h&s programmer, jasper turbo, ETE tranny, 400k mi !!
'09, quad cab, Laramie, 2WD, Dually, 6.7, auto. 255k mi
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My Other Truck is a Fire Engine!!
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Old 02-18-2019
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jetfueljockey jetfueljockey is offline
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Stabilant 22 is a contact enhancer I use regularly in my line of work....works good,
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'06 2500 Brilliant Black Pearl Thunder Road, QC, 4X4, G56 w/ SBDD, Home Brew in the gearboxes Volant CAI, ATS Arc Flow , Airdog 100, AFE 4" cat back, Smarty JR, Warn lock-outs, drilled and slotted rotors, HBS steering stabilizer, Pacbrake airbags, Bilstiens, RP 15W40 , 2 BIG BALLS (shift knobs) from Geno's, 5th wheel slider, step bars. The next mod is........

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Old 03-11-2019
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klmahnke klmahnke is offline
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So, ended up taking the computer out and sending it off for potential rebuild. Company for a problem with the circuitry providing an intermittent 12 volt signal. Repaired and reinstalled, the truck now runs better than it ever did.
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2005 Ram 2500 Quad Cab Laramie Short Bed 5.9l Cummins
2004 Ram 1500 Quad Cab SLT 5.7l Hemi V8
1998 Ram 1500 Quad Cab Sport 5.9l Magnum V8
1997 Ram 3500 Club Cab Dually SLT 5.9l Cummins
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Old 03-12-2019
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Clunk Clunk is offline
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Thanks for the update klmahnke!!!
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Time to turn so's you don't burn.

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