P00A8

Intake Air Temperature Sensor 2 Circuit High Bank 2

Q: Is it safe to drive with P00A8?

Yes, in most cases. It's an air-temperature sensor signal fault. The engine falls back to a default value, so drivability is usually normal — just get it fixed to keep fueling accurate.

Q: Can I just clear P00A8?

You can, but it returns until the sensor or its wiring is repaired. Clearing without a fix just resets the light temporarily.

Air intake / temperature sensor Generic OBD-II Low

What it means

P00A8 means the second intake air temperature sensor on Bank 2 is reporting a signal that's too high, which corresponds to an implausibly cold reading — usually an open circuit or a short to voltage. It's a sensor-signal fault: the ECM uses a substitute value, so the engine typically still runs normally with only minor fueling effects.

Low

Can I keep driving? Usually fine to drive — this is a sensor-signal fault; expect at most slightly richer cold running or minor economy loss, not a breakdown.

Real-world scan data

Seen in

scans in the past year

Found in

<0.1%

of scans

<0.1%

of scans that found faults

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 rich running or minor fuel-economy loss (often no noticeable symptom)
Intake air temperature reads implausibly low/cold on a scan tool

Common causes

Most likely first

Faulty intake air temperature sensor 2 (Bank 2)Likely
Open circuit or wiring shorted to voltage in the sensor signal lineCommon
Loose or corroded connector at the sensorCommon
ECM software needing an update (uncommon)Less often

How to diagnose & fix

Work through it in order

Read the live IAT 2 (Bank 2) value and compare it to the other air/coolant temps on a cold engine — they should agree.
Inspect the sensor connector and wiring for a broken signal wire or a short to voltage.
Back-probe the signal circuit to confirm whether the sensor or the wiring is out of range.
Replace the intake air temperature sensor 2 if it reads out of range with good wiring, then clear and re-test.

FAQ

Quick answers

Is it safe to drive with P00A8?+

Yes, in most cases. It's an air-temperature sensor signal fault. The engine falls back to a default value, so drivability is usually normal — just get it fixed to keep fueling accurate.

Can I just clear P00A8?+

You can, but it returns until the sensor or its wiring is repaired. Clearing without a fix just resets the light temporarily.

Read & clear P00A8 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