What does fault code P2624 mean?

The control module has detected a fault in the Fuel Injector Control Pressure Regulator Circuit Low (P2624). The signal is below the lower threshold, typically from a short to ground or an internally shorted sensor. Measurements: • Fuel Injector Control Pressure Regulator Circuit Low – Coil Resistance (Resistance (Ω)): 11.5 - 15.5 Ω (port) / 0.5 - 3.0 Ω (direct injection) [Condition: Connector disconnected at 20°C] • Fuel Injector Control Pressure Regulator Circuit Low – Injection Pulse at operating cycle (Signal (ms)): 2.5 - 4.5 ms idle / 1.5 - 20 ms under load [Condition: Engine running] • Fuel Injector Control Pressure Regulator Circuit Low – Supply Voltage (Voltage (V)): 11.8 - 14.4 V (port) / up to 65 - 90 V boost (direct) [Condition: Ignition ON / engine running] Oscilloscope: Scope the control side for Fuel Injector Control Pressure Regulator Circuit Low. The trace must show pull-down to < 0.2 V at open, flat saturation, and an inductive spike (40 - 90 V). (Scale: 1 ms/div, 20 V/div)

What are the symptoms of fault code P2624?

Sensor signal is pegged at the lower voltage limit (0 V / ground) Check Engine Light (MIL) illuminated Possible drivability or power reduction Risk of failing an emissions inspection

What causes fault code P2624?

Most likely: Short to ground on the signal wire or an internal short circuit within Fuel Injector Control Pressure Regulator Circuit Low Likely: Chafed or pinched wiring harness along the signal path to Fuel Injector Control Pressure Regulator Circuit Low Possible: Internal mechanical wear or carbon deposits inside Fuel Injector Control Pressure Regulator Circuit Low Rare: Defective internal output driver or reference circuit in the control module for Fuel Injector Control Pressure Regulator Circuit Low

How do you fix fault code P2624?

Measure signal wire resistance to chassis ground with connector unplugged (must exceed 10 kΩ; low reading confirms short to ground). Verify loaded supply voltage and harness terminal pins at Fuel Injector Control Pressure Regulator Circuit Low. Check circuit continuity and ground-side voltage drop (< 0.05 V) for Fuel Injector Control Pressure Regulator Circuit Low. Perform fuel rail pressure-drop / balance test to identify leaking, stuck, or clogged injectors. Mechanic tip: Pair a current clamp with your voltage channel on the scope. The distinct dip in the current ramp marks the physical pintle lift — no dip means the coil is energized but the needle is mechanically seized.

Standard EOBD

P2624 - Drivstoffinjektor styring trykk Regulator – lavt signal

Q: What are the symptoms of fault code P2624?

Sensor signal is pegged at the lower voltage limit (0 V / ground) Check Engine Light (MIL) illuminated Possible drivability or power reduction Risk of failing an emissions inspection

Q: What causes fault code P2624?

Most likely: Short to ground on the signal wire or an internal short circuit within Fuel Injector Control Pressure Regulator Circuit Low Likely: Chafed or pinched wiring harness along the signal path to Fuel Injector Control Pressure Regulator Circuit Low Possible: Internal mechanical wear or carbon deposits inside Fuel Injector Control Pressure Regulator Circuit Low Rare: Defective internal output driver or reference circuit in the control module for Fuel Injector Control Pressure Regulator Circuit Low

Q: How do you fix fault code P2624?

Measure signal wire resistance to chassis ground with connector unplugged (must exceed 10 kΩ; low reading confirms short to ground). Verify loaded supply voltage and harness terminal pins at Fuel Injector Control Pressure Regulator Circuit Low. Check circuit continuity and ground-side voltage drop (< 0.05 V) for Fuel Injector Control Pressure Regulator Circuit Low. Perform fuel rail pressure-drop / balance test to identify leaking, stuck, or clogged injectors. Mechanic tip: Pair a current clamp with your voltage channel on the scope. The distinct dip in the current ramp marks the physical pintle lift — no dip means the coil is energized but the needle is mechanically seized.

Relatert:Drivstoffinjektor styring trykk Regulator, Ledningsnett og kontakter, Styreenhet (ECM/PCM)

System

Drivlinje (Motor og girkasse)

Kontakt oss Finn reparasjon

Teknisk beskrivelse

Styreenheten registrerer en feil i Drivstoffinjektor styring trykk Regulator (P2624). Signalet ligger under nedre terskel, som regel på grunn av kortslutning mot jord eller en internt kortsluttet sensor.

Multimeter Målepunkter & Nominelle Verdier

Målepunkt / Komponent	Måletype	Nominelt Målområde	Målevilkår
Drivstoffinjektor styring trykk Regulator – spolemotstand	Motstand (Ω)	11.5 - 15.5 Ω / 0.5 - 3.0 Ω	Frakoblet ved 20°C
Drivstoffinjektor styring trykk Regulator – pulsbredde ved arbeidssyklus	Signal (ms)	2.5 - 4.5 ms tomgang	Motor i gang

Drivstoffinjektor styring trykk Regulator – spolemotstandMotstand (Ω)

Børverdi:11.5 - 15.5 Ω / 0.5 - 3.0 Ω

Frakoblet ved 20°C

Drivstoffinjektor styring trykk Regulator – pulsbredde ved arbeidssyklusSignal (ms)

Børverdi:2.5 - 4.5 ms tomgang

Motor i gang

Oscilloskop Kurveformanalyse

1 ms/div, 20 V/div

Mål styresiden for Drivstoffinjektor styring trykk Regulator; spenningsfall ved åpning og induktiv spiss ved lukking.

Mulige årsaker

Kortslutning til jord i signalledningen eller internt i Drivstoffinjektor styring trykk Regulator

Gnagd eller klemt ledningsnett fram til Drivstoffinjektor styring trykk Regulator

Mekanisk slitasje eller sotbelegg i Drivstoffinjektor styring trykk Regulator

Defekt driver eller referanseutgang i styreenheten for Drivstoffinjektor styring trykk Regulator

Symptomer

Sensorsignalet ligger låst ved nedre spenningsgrense (0 V / jord)

Motorlampe (MIL) lyser

Mulig redusert kjørbarhet eller effekt

Risiko for underkjent EU-kontroll

Anbefalt tiltak

Mål signalens motstand mot jord frakoblet (> 10 kΩ; lav motstand bekrefter kortslutning til jord).

Sjekk matespenning og kontaktstykke ved Drivstoffinjektor styring trykk Regulator.

Mål kontinuitet og jordspenningsfall (< 0.05 V) for Drivstoffinjektor styring trykk Regulator.

Utfør trykkfallstest for å avdekke dryppende eller tette injektorer.

Mekanikerens tips

Bruk strømtang sammen med spenningsmåling på oscilloskopet. Knekkpunktet på strømkurven bekrefter fysisk nålløft.

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P2625

Drivstoffinjektor styring trykk Regulator – høyt signal

Målepunkt / Komponent

Måletype

Nominelt Målområde

Målevilkår

Drivstoffinjektor styring trykk Regulator – spolemotstand

Motstand (Ω)

11.5 - 15.5 Ω / 0.5 - 3.0 Ω

Frakoblet ved 20°C

Drivstoffinjektor styring trykk Regulator – pulsbredde ved arbeidssyklus

Signal (ms)

2.5 - 4.5 ms tomgang

Motor i gang