OBD-II code · Powertrain (generic)
P00E2 Charge Air Cooler Coolant Temperature Sensor A Intermittent/Erratic
Intermittent signal from CAC coolant temp sensor A. The engine coolant temperature sensor feeds warm-up enrichment, fan control and closed-loop entry — a stuck-cold reading keeps the engine in open loop and rich forever.
Is it safe to drive with P00E2?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyConnector loose or corroded
- Less likelyConnector with intermittent contact under vibration
- Less likelyHarness routed against vibrating component
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.5–2 h
- Emissions test
- Likely to fail
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Cac Coolant Temp Sensor A, Sensor Wiring
Related codes
- P00DFCharge Air Cooler Coolant Temperature Sensor A Circuit Range/Performance
- P00E0Charge Air Cooler Coolant Temperature Sensor A Circuit Low
- P00E1Charge Air Cooler Coolant Temperature Sensor A Circuit High
- P00E3Exhaust Heat Exchanger Exhaust Bypass Valve A Stuck Open
- P00E4Exhaust Heat Exchanger Exhaust Bypass Valve A Stuck Closed
- P00E5Intake Air Temperature/Fuel Temperature Correlation
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.