P0111 Code without Engine Light
#1
P0111 Code without Engine Light
Hello, I just picked up a 2003 Diesel, 3500 and I have been getting some things repaired. I ended up replacing all of the injectors last week to get it ready for the annual emissions test. I went to get it tested and tagged and they told me it failed with a P0111 / Air Intake Temp Sensor. The issue I have is the engine light is NOT on. Not really sure if that is an intermittent problem or what. Any suggestions would be appreciated. Thanks
#2
Cummins Guru
Check the battery connections on the right side battery and remove and clean connectors, bad connections on battery. Also check connections on the solenoid for air intake heater.. Here is diagnostics but I seldom see IAT sensor go bad on these trucks.
#3
Registered User
On the second generation trucks, the IAT Sensor needed cleaning on a regular basis if you had an exhaust brake on the vehicle. I did not think this sensor was continued on the 3rd Gens as it's function was picked up by another sensor, I thought.
Had to edit my post again. They still sell the IAT for the 3rd Gen's. So I guess it still exists.
OH Yea, Welcome to the forum.
Dave
Had to edit my post again. They still sell the IAT for the 3rd Gen's. So I guess it still exists.
OH Yea, Welcome to the forum.
Dave
#4
OK Thanks. I did check the battery terminals, and they were loose. I reset the codes and it has not reappeared yet. I will wait some key cycles and check them again. Thanks again for your help.
#6
p0111 (w/ check engine light)
I had the same p0111 (with check engine light) fault come on today. I checked and cleaned the sensor to no avail, but I did notice that the right battery connections were a little corroded. Sure enough, cleaning the battery connections fixed it! BigIron70, I owe you a case of beer big-time. You just saved me $100 bucks.
Last edited by grishfish; 01-25-2013 at 05:26 PM. Reason: correction
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#8
Cummins Guru
I use a small wire brush and mopar battery terminal cleaner. Remove both ground cables first, then positive. The battery terminal bolts are expensive so you don't want to let the corrosion go for too long before you clean them. After cleaning I use mopar battery terminal protector spray. Never let them get this bad
#10
Registered User
I keep my engine compartment pretty clean, but I fought corrosion on the batteries almost since the truck was new. I finally replaced them with a set of Diehard Platinums and bingo, no more corrosion, zero, nada. I would have done it sooner if i would have known the difference it would make. The truck cranks over way better too. I guess since they are sealed, no corrosive gas floating around and growing the white stuff.
#11
Registered User
I keep my engine compartment pretty clean, but I fought corrosion on the batteries almost since the truck was new. I finally replaced them with a set of Diehard Platinums and bingo, no more corrosion, zero, nada. I would have done it sooner if i would have known the difference it would make. The truck cranks over way better too. I guess since they are sealed, no corrosive gas floating around and growing the white stuff.
#12
I had the same p0111 (with check engine light) fault come on today. I checked and cleaned the sensor to no avail, but I did notice that the right battery connections were a little corroded. Sure enough, cleaning the battery connections fixed it! BigIron70, I owe you a case of beer big-time. You just saved me $100 bucks.
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