Hybspec

P3110

Wysoki

Cylinder 3 Injector – High Voltage in Low Side Circuit. The code indicates incorrect voltage in the control circuit of the high-pressure injector for cylinder 3.

OBD-II (EN): Cylinder 3 Injector High Voltage Low Side Circuit

Code P3110 indicates detection of abnormally high voltage in the low side circuit of the high-pressure injector for cylinder 3. This may be caused by damage to the injector itself, a wiring problem, or less commonly, a fault in the engine control module. Due to the risk of catalytic converter damage and further engine faults, prompt workshop diagnosis is recommended.

Symptoms

- Engine control light (MIL) is on - Noticeable jerking or vibration of the engine during operation - Misfire (uneven combustion) – especially at idle and low RPM - Increased fuel consumption - Loss of engine power - Possible characteristic smell of unburned fuel from the exhaust system - Difficult starting or unstable engine operation

Possible causes

- Damaged or shorted high-pressure injector for cylinder 3 - Damaged wire insulation or short circuit in the injector circuit wiring harness - Faulty injector driver in the ECU/PCM module - Corrosion or oxidation of the injector electrical connector - Damaged engine control module (ECU/PCM) generating incorrect control voltage

Affected systems

Układ wtrysku paliwaObwód elektryczny wtryskiwaczyModuł sterujący silnikiem (ECU/PCM)Układ zapłonowyUkład wydechowy / katalizator

Related codes

P3120Wysoki

Usterka obwodu sterowania przekaźnikiem głównym układu napędowego (Hybrid Propulsion System). Kod wskazuje na nieprawidłowość w obwodzie kontrolnym przekaźnika zasilania systemu wysokiego napięcia.

Układ napędowy
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Does code P3110 require professional diagnostics?

The code alone is not enough. To find the cause, you need to read live data, check freeze frame conditions, and compare with vehicle behavior. Book a diagnostic session.