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I’m having trouble with my truck I have codes p1114 and p0174 I replaced the IAT and the rear o2 sensors but no luck engine light still on and truck idles rough
01 lightning code P1114 and p0174
- Thread starter ozzman306
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Ladmarines
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Mine was the rubber hose on the turkey pan. In the back. I plugged it up. Code went away
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Can you send me a pic of the location this has been driving me nuts thanks!!!
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Ladmarines
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Can't really it's behind the supercharger.
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Ok thanks one last question do I have to remove the supercharger to fix it ?? This is my first lightning never messed with these engines I’m used to the old 5.0s lol
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Ladmarines
New Member
I did. I actually plugged the hole in the turkey pan with in weld and then put a large screw in it so it would never come out
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The turkey pan will trigger 0171 and 0174 because of its location it throws lean both banks. That's not likely his issue. And in typical fashion he's throwing parts at the truck for no ****ing reason. The rear o2's monitor the condition of the cats. IF you had an o2 failing and a P0174 code, it would only be 1 o2, and it'd be a front one at that.
P1114 is IAT2... not the one by the air filter, but the one in the lower intake. Its located on the passenger side, in the second runner from the front. I would pull it and look for poor wires or it to be damaged.
P0174 is bank 2 lean, which means you're getting unmetered air on the drives side. I would look over the PCV system and vacuum lines on that side of the motor. Anything post blower will feed both banks and throw a P0171 and P0174.
That said, for the turkey pan he's discussing, here's a thread.
http://www.lightningrodder.com/foru...ey-pan-vacuum-line-end-p0171-p0174-codes.html
P1114 is IAT2... not the one by the air filter, but the one in the lower intake. Its located on the passenger side, in the second runner from the front. I would pull it and look for poor wires or it to be damaged.
P0174 is bank 2 lean, which means you're getting unmetered air on the drives side. I would look over the PCV system and vacuum lines on that side of the motor. Anything post blower will feed both banks and throw a P0171 and P0174.
That said, for the turkey pan he's discussing, here's a thread.
http://www.lightningrodder.com/foru...ey-pan-vacuum-line-end-p0171-p0174-codes.html
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I’ve check all the wires on the truck no cut wires I did a KOEO test with my scanner and got P0602 this truck is stock it just has a flowmaster muffler and a aftermarket head unit
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I saw your post in the 0602 thread. It stated a bad ecm... unfortunately you can't just swap them.
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Damn !! So I would have to buy a new one, and have it programmed to my truck
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Where can I buy the new computer? are the aftermarket ones any good ??
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I don't know where food find a new one. Use is the only option I know of.
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thanks for all the help once I get it figured out I will post more
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I’d figure I’d ask ... do you know the location of the PCM fuse / relay on these trucks my buddy said to check it it might be bad
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Not without looking in my owners manual.
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