Powertrain, generic · Fuel and air metering

P0183 Fuel Temperature Sensor A Circuit High

Check engine lightOn
EmissionsRelevant
Drive cycleRequired
Limp modeNo

Fuel temperature sensor A is an NTC thermistor: the hotter the fuel, the lower its resistance and signal voltage. On diesels it sits in the injection pump, rail or return line; on Ford petrol direct-injection engines it is built into the rail pressure sensor, and GM uses digital rail temperature sensors on its direct-injection engines. P0183 means the signal is above its valid range – typically an open circuit, an unplugged connector, an open sensor ground or a short to 5 V; the control module would read about −40 °C. Limits: Ford diesel above 4.92 V, Ford petrol above 4.82 V for 5 s, GM diesel above about 122 kΩ (two trips), GM 6.6 litre above 4.71 V for 5 s, Saab EDC16 above 4.96 V for 0.6 s. On the Nissan Rogue the sensor sits in the fuel pump unit in the tank, and misrouted wires there caused P0183/P0181.

Likely causes

Connector off or wire open
Sensor open internally
Wiring routing or chafing at the pump unit
Sensor ground open or short to 5 V
Engine control module

Symptoms

  • Check engine light on
  • Fuel temperature in scan data about −40 °C
  • Usually no change in driving; possibly hot-start problems

Repair estimate

DifficultyMediumWorkshop job
Parts and labour€50–400
Time0.5–3 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

fuel temperature sensor asensor wiring

Related codes

P0182P0181P0184P0188P0180

References: law.cornell.edu, fordservicecontent.com, fordservicecontent.com, gsi.ext.gm.com.