Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSMERCURY1998SABLE V6-3.0L DOHC VIN SREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTTRANSMISSION CONTROL SYSTEMSTESTING AND INSPECTIONDIAGNOSTIC TROUBLE CODE DESCRIPTIONSINTAKE AIR TEMPERATURE (IAT)
1998 Mercury Sable V6-3.0L DOHC VIN S
Intake Air Temperature (IAT)
1998 Mercury Sable V6-3.0L DOHC VIN SSECTION Intake Air Temperature (IAT)
DESCRIPTION
The Intake Air Temperature (IAT) Sensor is used to determine the electronic pressure control (EPC) pressure. It also provides the electronic fuel injection system with mixture (fuel and air) temperature information. The IAT is used both as a density connector for airflow calculation and to proportion the cold enrichment fuel flow. This sensor is similar in construction to the engine coolant temperature (ECT) sensor.
SYMPTOMS
Incorrect EPC pressure either high or low resulting in either harsh or soft shifts.
DTCs
P0112, P0113, P0114, P1112
The Intake Air Temperature (IAT) Sensor is used to determine the electronic pressure control (EPC) pressure. It also provides the electronic fuel injection system with mixture (fuel and air) temperature information. The IAT is used both as a density connector for airflow calculation and to proportion the cold enrichment fuel flow. This sensor is similar in construction to the engine coolant temperature (ECT) sensor.
SYMPTOMS
Incorrect EPC pressure either high or low resulting in either harsh or soft shifts.
DTCs
P0112, P0113, P0114, P1112
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.