P0098 code meaning
Intake Air Temperature Sensor 2 Circuit High Bank 1
Powertrain system Generic code P00xx codes Check engine light
What P0098 means
Intake air temperature sensor 2 is the second air temperature sensor in the intake path; on many turbocharged engines it sits in the intake manifold, often combined with the manifold pressure sensor, and is used to calculate cylinder filling and ignition timing. For P0098, the sensor signal is above its valid range. With the usual voltage-type NTC sensor this means an open circuit or a short to the reference voltage, and the control module reads an extremely low temperature; with sensors that have a frequency output, a high signal corresponds to an extremely high temperature.
P0098 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modeNot expected
- Repair difficultyEasy, DIY possible
- Typical labor0.3 to 2 hours
- Clears after repairAfter a drive cycle
Symptoms of P0098
- Check engine light on
- Usually no noticeable symptoms
- Slightly changed power or knock control with an implausible reading
Common causes of P0098
- Most likelyConnector loose or corroded, or wire interrupted
- PossibleSensor open internally
- PossibleSensor ground interrupted
- Less likelyEngine control module faulty
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Intake air temperature sensor 2Intake air temperature sensor wiringManifold absolute pressure sensor
What each part of P0098 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 0 | Area: fuel and air metering and auxiliary emission controls. |
| 98 | The exact fault in that area. |
What to do next
- Note P0098 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P0098
What does P0098 mean?
P0098 means "Intake Air Temperature Sensor 2 Circuit High Bank 1". Intake air temperature sensor 2 is the second air temperature sensor in the intake path; on many turbocharged engines it sits in the intake manifold, often combined with the manifold pressure sensor, and is used to calculate cylinder filling and ignition timing. It is a generic code, so it means the same on every make.
Is it safe to drive with P0098?
Usually yes, for a short time, if the check engine light is steady and the car drives normally. If the light flashes or the car runs badly, stop and have it checked.
Will P0098 fail an emissions test?
Yes, it can. P0098 is emissions-related, so most inspection programs fail a car while it is stored or while the check engine light is on.
How hard is P0098 to fix?
Difficulty: easy. A typical repair takes 0.3 to 2 hours of work. A careful DIY repair is possible with basic tools and a scanner.
Will P0098 clear itself after the repair?
After the repair the car has to complete a drive cycle (a mix of city and highway driving) before the test runs again. Until then the readiness monitor shows "not ready", which can fail an inspection.