P2087
Exhaust Gas Temperature Sensor Circuit Intermittent Bank 2 Sensor 2
Exhaust / emissions
Generic OBD-II
Low
What it means
P2087 means the signal from exhaust gas temperature (EGT) sensor 2 on bank 2 is intermittent or erratic. This sensor monitors exhaust temperature to protect the catalyst and, on diesels, to manage DPF regeneration. The engine starts and drives normally, but a dropping signal can disrupt regeneration. Intermittent faults usually trace to chafed wiring or a loose connector rather than the sensor itself.
Low
Can I keep driving? Safe to keep driving — the engine starts and runs normally; on diesels a bad reading can affect DPF regeneration, so fix it before soot builds up.
Common symptoms
What you'll notice
- Check-engine light on (may come and go)
- Possible incomplete or extra DPF regeneration on diesels
- Otherwise normal starting and driving
Common causes
Most likely first
- Intermittent or failing exhaust gas temperature (EGT) sensorLikely
- Chafed, loose, or heat-damaged wiring near the exhaustCommon
- Corroded or intermittent connector at the sensorCommon
- Faulty powertrain control module (PCM) — rareLess often
How to diagnose & fix
Work through it in order
- Read freeze-frame data to see when the signal drops out.
- Wiggle-test the EGT sensor wiring and connector to reproduce the intermittent fault.
- Inspect the harness routing near the exhaust for heat or chafe damage.
- Measure the sensor's resistance against temperature per spec.
- Replace the EGT sensor if it reads erratically, then clear and re-test.
FAQ
Quick answers
Is it safe to drive with P2087?+
Yes — the engine runs normally. On a diesel, address it promptly so DPF regeneration stays accurate.
Can I just clear P2087?+
An intermittent fault may stay away briefly, but it returns until the sensor or wiring is repaired.
Related codes
Often seen with P2087
Read & clear P2087 yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.
✓ Verified name — SAE J2012 / ISO 15031-6Guidance reviewed by OBD DashX