Fuel and injectionGeneric OBD-II codeUrgency: Monitor
Code P0183: fuel temperature sensor: high signal
P0183 means: fuel temperature sensor circuit "A": high signal.[1][2] The ECU has detected that the signal from fuel temperature sensor "A" is above the calibrated value; on Ford, for example, the signal exceeds 4.5 V during the self-test. A signal that high usually indicates an open circuit or a short to positive.[1][2]
What code P0183 means
The ECU has detected that the signal from fuel temperature sensor "A" is above the calibrated value; on Ford, for example, the signal exceeds 4.5 V during the self-test. A signal that high usually indicates an open circuit or a short to positive.[1][2]
In the Volkswagen-Audi group, Ross-Tech describes it as sensor G81 with an open circuit or a short to positive.[1]
Original definition (SAE J2012): Fuel Temperature Sensor "A" Circuit High[1][2]
Causes of P0183
From most to least likely, according to the sources.
Symptoms
- Engine warning light on; Ross-Tech mentions no other symptoms.[1]Engine warning light: faults that cause it
How to diagnose P0183
In order: from the most likely and cheapest to check to the most expensive.
Can I keep driving with P0183?
Monitor
The sources only mention the warning light and do not describe any engine damage; there is no data that requires you to stop the car, but it should be checked.[1]
Documented faults related to P0183
Known faults of specific engines and cars, with their repair cost, the affected years and their sources.
Engine sensors: the most serious faults by engine and car
- High severityFrequency: Occasional2.0 DTI and 2.2 DTIVP44 injection pump and air mass meter failureGerman Wikipedia documents recurring failures of the Bosch VP44 injection pump and the air mass meter in the early years of this engine. An owner testimony for this engine describes the pump being replaced at 192,500 km, at a cost the owner calls «prohibitive».
- Medium severityFrequency: Common2.0 TDIClogged particulate filter or faulty pressure sensorThe 2.0 TDI's particulate filter clogs if the car mostly makes short journeys, because it never gets to regenerate; sometimes the fault is just the differential pressure sensor. Cleaning it costs around €200 and replacing it, €800 to €3,000.Repair (garage): €800–€3,000
- Medium severityFrequency: Common1.4 and 1.6 8vCrankshaft position sensor failure (TDC sensor)The crankshaft position sensor (capteur PMH, or TDC sensor) appears repeatedly in the reliability sources for the Clio II, the Kangoo I and the Dacia Logan I with this engine, with hard cold starting or stalling as the main symptoms. It is a cheap part, but the failure can leave you stranded.
- Medium severityFrequency: Common1.4 and 1.6 16vCrankshaft position sensor failureThe crankshaft position sensor (capteur PMH) appears repeatedly in the reliability sources for almost every generation with this engine, with hard cold starting, stalling or the car cutting out unexpectedly. It is a cheap part, but the failure can leave you stranded.
Wiring, connectors and short circuits: the most serious faults by engine and car
- Critical severityFrequency: OccasionalBMW N62 / N63Additional turbo coolant pump with a risk of short circuit and fireIn 2011 BMW recalled 5, 6 and 7 Series, X5 and X6 models built between 2007 and 2011 because of the additional turbo coolant pump: moisture, a short circuit and, in extreme cases, a fire. In 2012 there was another campaign for a crack in the pump, with a more robust version.
- High severityFrequency: Occasional1.3 TCeBlown fuel pump fuseOn the Renault Captur II and Clio V with the 1.3 TCe engine, a 20-amp fuse can blow and leave the car without an engine. According to L'argus, in April 2021 this fault still had no factory fix; the official service centre's diagnosis includes checking, and sometimes replacing, the catalytic converter.
- High severityFrequency: OccasionalM264/M254Poorly tightened 48 V earth wiring in the mild-hybrid system (fire risk)Mercedes-Benz has issued several recalls (2022-2025) because the 12 V and 48 V earth connections of some cars with a 48 V system may be poorly tightened: resistance rises, the connection heats up and a fire cannot be ruled out. The official workshop checks them and repairs them if necessary in an hour or more.
- High severityFrequency: Occasional1.9 TDIUnit injector tappet wear and injector wiring damageOn the unit injector system, the tappets that operate the injectors can wear if the oil is not changed on time, and the injector wiring can be damaged by contact with oil, causing misfires or loss of power.
- Critical severityFrequency: CommonRover 75Seat SRS connector fault with airbag and seatbelt warning light onAuto Express warns that the Rover 75's seat SRS connector can cause the airbags to fail, and dealers were fixing it with revised connectors. The Dutch APK inspection puts the airbag or seatbelt fault warning among the most frequent defects across almost all series.
- Critical severityFrequency: OccasionalAlfa Romeo GiuliettaShort circuit from badly routed wiring that can prevent gear shifting (KBA campaign, 2010-2015)Yes: according to Germany's KBA, on Alfa Romeo Giulietta cars built between 2010 and 2015 inadequate cable routing could cause a short circuit and, as a result, gear-shift failure.
Frequently asked questions
What does code P0183 mean?
The signal from fuel temperature sensor "A" is too high, which usually indicates an open circuit, a short to positive or a faulty sensor.[1][2]
Does it mean the same on every make?
The generic definition is the same, but each manufacturer checks it against different thresholds: Ford uses 4.5 V, for example, and Chrysler applies it to CNG temperature.[2]
How is P0183 diagnosed?
By starting with fuses, wiring and connectors and, if they are fine, testing or replacing the sensor.[1]
Will I pass the MOT with code P0183?
If the code has switched on the engine warning light, no: with that light on, the inspection records a serious defect, and on Euro 5 and Euro 6 cars the ITV (Spain's roadworthiness inspection, similar to the MOT) also reads the OBD diagnostic system. Repair the fault before you go; clearing the code just before the inspection does not help either, because it counts as a serious defect.[3]
Not sure what is wrong with your car? Describe what you notice in the symptom diagnosis or see all fault codes.
Sources
Every fact on this page links to its source. If you find an error, let us know.
- 16567/P0183 - Fuel Temperature Sensor A (G81): Open or Short to PlusRoss-Tech Wiki · Technical documentation · consulted 29 October 2026
- p0183 DTC: Fuel Temperature Sensor "A" Circuit HighDTCSearch.com · Other source · consulted 29 October 2026
- Desmontando mitos: ¿puede pasar mi coche la ITV con el testigo de «avería motor» encendido?Diariomotor · Motoring press · published 8 March 2021 · consulted 2 October 2026 · in Spanish