PULSCAR ANALYSIS — P0113 (INTAKE AIR TEMPERATURE SENSOR 1 CIRCUIT HIGH) IN NHTSA'S PUBLIC FILES
PulsCar analysis of NHTSA public data, September 2026.
License: CC BY 4.0. Attribution: "PulsCar analysis of NHTSA public data, September 2026."
Published alongside https://www.pulscar.io/blog/p0113-code

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Prepared 26 September 2026. Source data: NHTSA public flat files (complaints received 2015 to 21 September 2026, 780,071 records; manufacturer communications from January 2015; recalls from 2010) and documents downloaded from static.nhtsa.gov.

1. Intake-air-temperature complaints (52, all read in full)
   Case-insensitive search of complaint narratives for the codes P0110-P0114 (also with the leading zero missing), P0097 and P0098, the whole word IAT, the phrase "intake air temp" and the phrase "air temperature sensor". 52 unique complaints; every one read and coded (iat-52-complaints-read.csv). Pattern counts before reading: P0113 11, P0112 2 (one of the two is 'P112', a throttle code), P0111 1, P0114 3, P0110 1, P0097 3, P0098 1, IAT 10, "intake air temp" 13, "air temperature sensor" 21.
   Result: 20 are not about the intake air temperature sensor (11 ambient, outside or evaporator air temperature sensors; 6 where "IAT" is a typing slip for "at"; one freeze-frame IAT value that is not a fault; one throttle code written as P112; one where the sensor cannot be told). Of the 32 that are: 6 arrive with airflow (MAF) codes or MAF work and no cause found; 5 describe several sensor circuits or wiring failing at once; 2 appeared after other work on the car; 3 describe the sensor itself loose, replaced or blamed; 8 list the IAT code in a crowd of codes behind an engine or fuel fault; 8 other or unresolved.
   14 of the 32 name P0113 by number or by its definition ("intake air temperature sensor 1 circuit high"). Nine of those 14 also name an airflow code or the MAF sensor.

2. Owner-reported amounts
   Dollar figures in the 52 were read in context. None prices an intake air temperature sensor repair. One states a diagnostic fee for P0113 itself ($110, a 2018 Prius); a $240 fee in a 2017 Rogue complaint with P0113 was for its ABS pump. The other figures belong to unrelated repairs (coils, a transmission, a CVT valve, an injector, an ABS diagnosis) or to ambient sensors (a door mirror; rodent-damaged bumper wiring), and are not used as P0113 prices.

3. Documents
   p0113-recalls-extensions-bulletins.csv; each marked "yes" downloaded from static.nhtsa.gov and read in full on 26 September 2026. Two NHTSA records point to the same PDF as another record and are noted. A search of the recall file (2010 onward) for "P0113" in the defect, remedy or notes text returns no campaigns.

Limits: complaints over-represent bad outcomes and owners who could not find the cause; many owners list several codes; one reader, one pass. Nothing here is a failure rate.