P1250 GMC 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 do I fix code P1250 GMC
Check 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.
Cost of diagnosing the P1250 GMC code
Labor: 1.0The cost of diagnosing the P1250 GMC 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.
P1250 GMC Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P1250 GMC MeaningWith 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.
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