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Fault codes › P01xx — Fuel and air metering › P0187

P0187

MODERATE

Fuel Temperature Sensor U Circuit Low Input

What this code means

Fuel Temperature Sensor U Circuit Low Input. These codes concern the sensors that tell the control unit about the mixture: mass airflow, oxygen sensors, fuel trim corrections. They often point to an air leak or an ageing sensor rather than an outright failure.

How to read this code

  • PPowertrain
  • 0standardised code
  • 1Fuel and air metering
  • 87P0187

The letter P names the system: Powertrain. The digit 0 that follows marks a standardised code, shared by all manufacturers code. The next digit, 1, locates the fault: fuel and air metering.

What to do

Have it checked this week. The car remains usable, but the fault will not clear itself and will fail the roadworthiness test.

Clearing a code switches the light off but repairs nothing: if the fault remains, the code comes back.

Nearby codes

P0187

System
Powertrain
Fault family
Fuel and air metering
Severity
MODERATE
Origin
Standardised generic code
Read this code on your own car

Klaro shows this code and the others in plain words, alongside live engine data. An OBD2 adapter is required, sold separately.

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