C3426 Trouble Code

View C3426 obd/2 error code description and symptoms. C3426 engine photo

Low Speed Fuel Pump Primary Circuit Malfunction The PCM monitors the low speed fuel pump (LFP) primary circuit output from the PCM.
The test fails if: When the LFP circuit is commanded on (grounded), excessive current draw is detected on the LFP circuit; or when the LFP circuit is commanded off, voltage is not detected on the LFP circuit (the PCM expects to detect VPWR voltage coming through the low speed fuel pump relay coil to the LFP circuit). Open or shorted low fuel pump (LFP) circuit Open VPWR to low speed fuel pump relay Damaged low speed fuel pump relay Damaged PCM An open circuit or short to ground can only be detected with the low speed fuel pump.

As the engine heats up and combustion becomes easier and more complete, the PCM will command the idling control valve to increase the amount of air entering the engine to suit the changing conditions. However, when the load on the engine changes, say, when some electrical consumers or other systems are either turned on or off, the PCM adapts the signal voltage to the idle control valve to ensure that the idling speed remains stable, and at the RPM specified by the manufacturer.

C3426 Error Code Repair Process :

The scent may C3426 signal oil or coolant leaking from their normally closed-loop systems, or it may indicate dangerous exhaust gases invading your car's interior. Car and truck exhaust contains toxic gases such C3426, so if the inside of your car optical sensor system failure as if you were standing behind your car, get out and get it fixed. Fight the urge to take a little nap first. So sleepy. That's the carbon monoxide talking, friends. At least open a window on your way to the shop.

C3426 is a kind of Chassis Trouble Code

Diagnosing chassis noises can be one of the most frustrating problems technicians face. Fortunately, manufacturers have engineered noise, vibration and harshness (NVH) diagnostic techniques and equipment to find the source of the noise.

Common Causes of C3426

A common cause of code C3426 is the failure of Optical Sensor System Failure, but there are several other possible causes as well, such as ;

EVAP canister or fuel tank leaks
Exhaust tube
Incorrect Positive Crankcase Ventilation (PCV) hose connection
Air fuel ratio (A/F) Sensor 1 Bank 1 circuit poor electrical connection

C3426 code for all cars

You can view according C3426 DTC for your car model. We selected several models to see obd2 solutions click and view it.

+C3426 Audi A2

+C3426 Skoda 1200

+C3426 Lamborghini Jalpa

+C3426 Amc Gremlin

+C3426 Suzuki Baleno Ii

Engine OBD 2 Codes website is a freeware resource center for engine trouble codes.

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