B3390 Trouble Code

View B3390 obd/2 error code description and symptoms. B3390 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.

To check for an open circuit, trace along the length of the transmission control circuit, checking for breaks in the wiring. Repair any broken wiring and make sure all connectors are fully seated and locked.Pay close attention to connectors, looking for corrosion, bent or broken pins, or moisture in the connector. Repair any connector issues even if they are not specifically part of the transmission control circuit as they may serve a function in providing power to the transmission control circuit.

B3390 Error Code Repair Process :

The scent may B3390 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 B3390, so if the inside of your car evap emission control sys leak detected (gross leak/no flow) 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.

B3390 is a kind of Body Trouble Code

Auto body problems aren't always easy to spot. Diagnosing auto body problems sometimes requires a little know-how. In this section you'll find articles dedicated to teaching you how to diagnose auto body problems.

Common Causes of B3390

A common cause of code B3390 is the failure of Evap Emission Control Sys Leak Detected (Gross Leak/No Flow), but there are several other possible causes as well, such as ;

EVAP canister or fuel tank leaks
Exhaust tube
Continuous oil flow to the VCT piston chamber
Spark plugs may be faulty

B3390 code for all cars

You can view according B3390 DTC for your car model. We selected several models to see obd2 solutions click and view it.

+B3390 Bentley Mulsanne

+B3390 Chevrolet Nomad

+B3390 Honda S600

+B3390 Mercedes-benz W111

+B3390 Ford Skyliner

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

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