Fuel Temperature Sensor A Circuit Intermittent

What it means

The engine computer has found that the fuel temperature sensor signal drops out or jumps suddenly for short periods and then returns. This usually points to a poor connection in the connector or a wire affected by vibration or heat, rather than a permanently failed sensor.

Related codes: P0180P0181P0182P0183P0194

Symptoms3

• Check engine light that comes on and goes off.
• Sudden jumps in the fuel temperature reading on the scan tool.
• Usually no clear driving symptoms.

Possible causes4

• Loose or corroded connector terminals.
• A wire cracked inside that breaks contact with vibration.
• Wiring rubbing against a metal or hot part.
• Intermittent internal sensor fault (less common).

How to diagnose4

1. Watch the reading on a scan tool while gently moving the wiring and connector; a jump when moving it shows where the fault is.
2. Check the connector terminals for tension, corrosion or signs of fuel.
3. Follow the wiring route looking for chafing or melting.
4. Review the freeze frame data on the scan tool to see the conditions when the code set.

How to fix4

1. Clean the connector and tighten or replace its terminals.
2. Repair the cracked wire and secure it away from heat and moving parts.
3. Replace the fuel temperature sensor if the fault continues with a sound circuit.
4. Clear the codes and watch the reading while driving to confirm it is stable.

Repair cost

In Saudi riyals; the highlighted part is the expected range for this fault.

A connector or wiring repair is usually enough at low cost; the upper end is for a new sensor or the part it is built into.

Prices are rough estimates for common cars at independent workshops and vary with the car and the source of the part.
Prices last updated: September 2026

Frequently asked questions