P0188

Fuel Temperature Sensor B Circuit High

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$33–111 (est.)

Symptoms

Check Engine Light Is On
Increased fuel consumption
Reduced engine power
Rough idling

Causes

Fuel temperature sensor B malfunction
Short circuit in the sensor circuit
Broken or damaged wiring harness
Poor contact in the sensor connector
ECU malfunction (rare)

How to Fix

Check resistance of fuel temperature sensor B
Inspect the wiring harness for damage
Check the contacts in the sensor circuit connectors
Check the voltage in the sensor circuit
If necessary, replace the sensor or repair the wiring harness
Reset the error code and take a test drive

Related codes

P0187 P0189 P0190