P2033

Exhaust Gas Temperature Sensor Circuit High Bank 1 Sensor 2

Q: Is it safe to drive with P2033?

The engine drives normally, but on diesels the PCM relies on this sensor to run and protect DPF regeneration. Prolonged driving with it faulty can lead to soot buildup, so repair it soon.

Q: Can I just clear P2033?

It returns until the sensor or wiring is repaired. The high-voltage reading points to an open circuit that needs fixing.

Emissions (exhaust temperature) Generic OBD-II Medium

What it means

P2033 means the exhaust gas temperature (EGT) sensor 2 on bank 1 is reporting an abnormally high circuit voltage, usually indicating an open circuit or failed sensor. The engine still starts and runs, but on diesels this sensor helps manage and protect DPF regeneration, so a fault can interfere with soot burn-off. It's typically a wiring, connector, or sensor issue.

Medium

Can I keep driving? The engine runs and starts normally; on diesels it can disrupt DPF regeneration, so get it fixed before soot builds up.

Real-world scan data

Seen in

129

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
Diesel: incomplete or missed diesel particulate filter (DPF) regeneration
Possible reduced power if the vehicle enters a protective mode
Often no change in how the engine drives

Common causes

Most likely first

Faulty exhaust gas temperature (EGT) sensor 2 on bank 1Likely
EGT sensor wiring open or shorted (reads as high voltage)Common
Corroded or loose connector at the sensorCommon
Damaged wiring near the hot exhaust routingLess often

How to diagnose & fix

Work through it in order

Read freeze-frame data and compare the EGT sensor's reported temperature to the others.
Inspect the sensor connector and harness for open circuits, corrosion, or heat damage.
Check the sensor's resistance against spec; a reading pinned high usually means an open circuit or failed sensor.
Replace the EGT sensor if faulty, then clear and re-test.

FAQ

Quick answers

Is it safe to drive with P2033?+

The engine drives normally, but on diesels the PCM relies on this sensor to run and protect DPF regeneration. Prolonged driving with it faulty can lead to soot buildup, so repair it soon.

Can I just clear P2033?+

It returns until the sensor or wiring is repaired. The high-voltage reading points to an open circuit that needs fixing.

Read & clear P2033 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