P2184 OBD II Trouble Code Engine Coolant Temperature (ECT) #2 Circuit Low Input

Symptoms of P2184 OBD II Trouble Code

  • MIL (Malfunction Indicator Lamp) illumination
  • Poor fuel economy
  • Poor drivability
  • Engine may run rough or blow black smoke out the tailpipe
  • May not idle
  • May start and then die

Common Causes of P2184 OBD II Trouble Code

  • Bad #2 ECT sensor
  • Short to ground on ECT #2 signal circuit
  • Faulty or damaged connectors
  • Wiring harness damaged
  • Loose terminals at ECT or PCM
  • POSSIBLY an overheated engine
  • Bad PCM