Error code

OBD2 P2033

OBD2P2033
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.

What it means

Exhaust Gas Temperature Sensor Circuit High.

Severity

moderateCan drive cautiously with monitoring, but addressing the issue is recommended to prevent further damage.

Summary

P2033 indicates an abnormally high voltage in the circuit of the second exhaust gas temperature (EGT) sensor on bank 1 of the engine. This sensor is located downstream of the catalytic converter.

Symptoms

  • Check Engine Light illuminated
  • Potential overheating issues with the catalytic converter

Common Causes

  • Wiring short to positive voltage in the EGT sensor circuit
  • Damaged, burnt, or corroded wiring and connectors
  • High system voltages (indicated by other dedicated codes)
  • Failed PCM (rare but possible)

Diagnosis

  1. Inspect wiring and connectors for signs of damage or corrosion
  2. Check system voltages for any abnormalities
  3. Scan for other related codes that may indicate underlying issues

Fixes

  • Repair damaged wiring and connectors
  • Replace faulty EGT sensor if necessary

FAQ

What does the P2033 code mean?

P2033 indicates an issue with the second exhaust gas temperature (EGT) sensor on bank 1, specifically a high voltage in its circuit.

How serious is this problem?

Moderately serious. It can affect the efficiency of your catalytic converter and may cause overheating issues if not addressed.

View source

Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.

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