P1244

Speed Fuel Pump Positive Feed Fault

Powertrain Fuel and Air Metering Fuel pump power supply 🟡 Moderate — Fix within a week ⚠️ Drive with Care
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What This Actually Means

In plain language — no jargon

The fuel pump's positive power supply wire has a break, short, or connection problem, so the pump isn't getting enough electrical power. It's like having a light switch with a loose wire—the pump tries to turn on but can't get proper power.

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Symptoms You May Notice

3 known symptoms for this code
Engine cranks but won't start or starts intermittently
Loss of fuel pressure at fuel rail
Check Engine Light illuminated
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How Your ECU Detects This

Technical sensor logic and voltage thresholds

The ECU monitors voltage and current flow to the fuel pump relay circuit. It expects proper battery voltage delivery to the pump motor when the ignition is on or during cranking. If voltage drops below threshold or the circuit shows high resistance, the fault code triggers.

Voltage & Parameter Thresholds

ParameterNormal RangeFault Condition
Fuel Pump Supply Voltage 12-14V at pump connector <10V or erratic voltage
Pump Circuit Current Draw 4-8A during operation 0A or no current detected
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Diagnostic & DIY Fix Guide

Check these in order — from cheapest to most complex
1
Fuel pump relay
Locate relay in engine bay fuse box, swap with identical relay from another circuit to test; if engine starts, replace the faulty relay.
2
Fuel pump positive wire harness
Inspect the wiring from relay to pump for cuts, corrosion, or loose connectors; clean or resolder any corroded connections.
3
Battery cable and connections
Check battery terminals and main power cables for corrosion or looseness, clean with baking soda and water, and tighten all connections.
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When to See a Professional Mechanic

Not all fault codes are safe to DIY

Code P1244 is a moderate fault. You can generally drive to a workshop, but avoid long trips or high-load driving (motorway, uphill towing) until it is diagnosed. If the code keeps returning after clearing, or if you notice the symptoms listed above worsening, do not delay professional diagnosis. Many moderate codes have multiple possible root causes — a mechanic with live OBD data can identify the exact fault more efficiently than part-by-part trial and error.

Safety note: OBD-II codes identify the system or circuit where a fault was detected — they do not always identify the exact failed component. A professional mechanic using live sensor data will diagnose the root cause more accurately than replacing parts based on the code alone.
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How to Clear Code P1244

What happens after you fix the fault

Once the fault is repaired, P1244 can be cleared using any OBD-II scanner. Connect the scanner, navigate to "Clear Codes" or "Erase DTCs," and confirm. The check engine light turns off immediately.

The code will return if the root cause was not actually fixed. The ECM re-detects the fault within 1–3 drive cycles and sets the code again.

✅ Safe to Clear When
  • Fault has been diagnosed and repaired
  • You want to confirm the repair worked
  • Code appeared after a sensor was cleaned
⚠️ Do Not Clear When
  • Preparing for an emissions/PUC test
  • Root cause is still undiagnosed
  • Check engine light is flashing
Emissions test note: Clearing codes resets OBD readiness monitors. Most vehicles need 50–100 km of mixed driving before monitors complete. Do not clear codes immediately before an emissions or PUC inspection.