Engine-Codes - Chevrolet - P1250 CHEVROLET

P1250 CHEVROLET - Early Fuel Evaporation Heater Circuit

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What is this?
Table of contents

P1250 CHEVROLET Possible Causes

  • Faulty Early Fuel Evaporation (EFE) resistor
  • Early Fuel Evaporation (EFE) resistor harness is open or shorted
  • Early Fuel Evaporation (EFE) resistor circuit poor electrical connection

How is the P1250 CHEVROLET code repair?

Start by checking the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

What is the cost to diagnose the P1250 CHEVROLET code

Labor: 1.0

The cost to diagnose the P1250 CHEVROLET code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.

Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P1250 CHEVROLET Meaning

With the engine running, BARO input over 75 kPa, Intake Air Temperature (IAT) input from 14-122°F, fuel level over 25% then the Powertrain Control Module (PCM) detects that the Early Fuel Evaporation (EFE) resistor circuit voltage was below 2.5v with the EFE heater off, or the circuit voltage was over 0.3v with the EFE heater on for 5 seconds.

More Information

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