P0113 IAT sensor Location????
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6th Gear
Joined: May 2024
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P0113 IAT sensor Location????
Hello all, I am new here, My 03 f250 7.3 is cranking but not starting, it is throwing a P0113 code not sure where the IAT sensor is located I can't find any diagrams Ive seen where the IAT is in the MAP sensor?? can any one help with this? Thanks!
It's a Van Gogh
Joined: Feb 2010
Posts: 7,813
Likes: 1,335
From: Elk Grove, CA
Welcome to FTE! 
The IAT is plugged into the airbox, little grey thingy. If you have a 6637 or similar aftermarket air filter the IAT should be ziptied nearby.
I'll attach 6637 installation instructions from RiffRaff, has some helpful pics.
Doubt that could prevent starting tho. Anything else going on with the truck? Good oil level?
The IAT is plugged into the airbox, little grey thingy. If you have a 6637 or similar aftermarket air filter the IAT should be ziptied nearby.
I'll attach 6637 installation instructions from RiffRaff, has some helpful pics.
Doubt that could prevent starting tho. Anything else going on with the truck? Good oil level?
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6th Gear
Joined: May 2024
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Thank you! I have an S&B clear box air filter, so I will look for the sensor somewhere nearby tomorrow.
All fluid levels are good
this all started after I ran out of diesel, I filled her up and the next day the car just shut clean off while driving no warning, noise or anything.
fuel bowl fills
wts light comes on
hpop gauge showing 2500 at crank
it is chipped
codes showing are
PCM
p0470 exhaust back pressure sensor (I took that off and cleaned the sensor and tube) (had 3.5 V on diagnostic report)
p0113 which is the IAT
p0603 KAPWR circuit power interrupted
P1670 electronic feedback signal not detected
HEC
B1352 ignition key in circuit error
tranny codes:
p1832 (transmission transfer case 4wd solenoid circuit fault)
p1876 (transfer case 2wd solenoid circuit open or short to ground
Now in the diagnostic report everything came back in range the only thing out of range was the IAT at -40 degrees
I was going to try to replace that first and then try removing the chip to see if that is creating issues?
All fluid levels are good
this all started after I ran out of diesel, I filled her up and the next day the car just shut clean off while driving no warning, noise or anything.
fuel bowl fills
wts light comes on
hpop gauge showing 2500 at crank
it is chipped
codes showing are
PCM
p0470 exhaust back pressure sensor (I took that off and cleaned the sensor and tube) (had 3.5 V on diagnostic report)
p0113 which is the IAT
p0603 KAPWR circuit power interrupted
P1670 electronic feedback signal not detected
HEC
B1352 ignition key in circuit error
tranny codes:
p1832 (transmission transfer case 4wd solenoid circuit fault)
p1876 (transfer case 2wd solenoid circuit open or short to ground
Now in the diagnostic report everything came back in range the only thing out of range was the IAT at -40 degrees
I was going to try to replace that first and then try removing the chip to see if that is creating issues?
Logistics Pro
Joined: May 2017
Posts: 4,667
Likes: 1,455
From: Muskogee, Ok
Most likely the chip is causing the fake IAC readings. Since you know all the codes it shows clear them and see what comes back.
FWIW, One of the first steps in troubleshooting is to remove the chip
FWIW, One of the first steps in troubleshooting is to remove the chip
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