P0098

Intake Air Temperature Sensor 2 Circuit High Bank 1

Fuel & air metering Generic OBD-II Low

What it means

P0098 means the intake air temperature sensor 2 circuit (bank 1) is reading high — usually an open circuit or short-to-voltage, so the signal looks unrealistically cold. The ECM uses this reading to trim fueling and timing, so a fault typically causes only minor hesitation or slightly worse economy. It's an electrical sensor problem and does not prevent the engine from starting.

Low

Can I keep driving? The engine runs and drives; you may notice slight hesitation or worse economy, but it won't cause a no-start.

Real-world scan data

Seen in

1,673

scans in the past year

Found in

0.3%

of scans

0.5%

of scans that found faults

Appears alongside · share of P0098 scans

P0238in 24.7% of scans

P0113in 24.4% of scans

P0107in 18.8% of scans

Figures reflect only diagnostic scans recorded through our own apps and tools. Cars are typically scanned because a symptom or warning light prompted it, so these counts describe our scan records — not the incidence of faults in any model, and not the quality, reliability, or safety of any vehicle. No comparison between manufacturers or models is implied. All trademarks belong to their respective owners; no affiliation or endorsement is implied.

Common symptoms

What you'll notice

Check-engine light on
Slightly reduced power or hesitation
Worse fuel economy
Often no strong driving symptoms beyond the warning light

Common causes

Most likely first

Faulty intake air temperature sensor 2, bank 1Likely
Open circuit or short-to-voltage in the sensor wiringCommon
Corroded or loose connector at the sensorCommon
Damaged wiring near the sensorLess often
Failed ECM/PCM input (least likely)Less often

How to diagnose & fix

Work through it in order

Read freeze-frame data and check IAT2's reported temperature for a plausible value versus intake air temp.
Inspect the sensor connector and wiring for an open or short-to-voltage.
Check for corrosion or a loose pin at the connector.
Measure sensor resistance against spec; replace the sensor if out of range.
Repair the wiring/connector fault, clear the code, and road-test.

FAQ

Quick answers

Is it safe to drive with P0098?+

Yes, generally. The ECM uses a default value, so the engine still runs — but fueling won't be optimal, so fix it to restore economy and smoothness.

Can I just clear P0098?+

It will return until the sensor or wiring is repaired, since the circuit reads high (open) continuously.

Read & clear P0098 yourself

Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.

▶ Get it on Google Play

✓ Verified name — SAE J2012 / ISO 15031-6Guidance reviewed by OBD DashX