B1599 Diagnostic Trouble Code

B1599 is a kind of OBD-II Diagnostic B-Body Diagnostic Trouble Code.

It is considered generic because it applies to all makes and models of vehicles, although specific repair steps may be different depending on your car model.

Symptoms

Symptoms of a B1599 diagnostic trouble code may include:

Excessive exhaust leak
Hesitation upon acceleration
Malfunction Indicator Lamp (MIL) illuminated
Rich or lean exhaust

Possible Causes :

Faulty IMRC actuator relay (if equipped)
A large air leak at or near the number one oxygen sensor would also cause a lean mixture.
Low fuel pressure caused by a clogged filter, failing fuel pump, failed fuel pressure regulator or clogged or leaking injectors.

Repair Processes :

Now, clear the codes and test-drive the vehicle to see if the code is reset. Look for missing ground strap or a rusty ground where the fuel tank is grounded to the frame. Check for damage to the wiring harness connector. Look at the plug wires to make sure they are not burnt or laying on the exhaust.

Process Tips

Diagnostic trouble code B1599 is not difficult to diagnose and repair. Thus, it always pays to have a qualified technician to look after your vehicle should this error code arise.

Diagnosing this code requires the engine to be in good running shape, without unmetered air entering the engine. If other codes that relates to misfiring condition, lean running or air entering the engine is present, then you must first fix those error codes before B1599.

Fortunately, B1599 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

B1599 Trouble Code For Specific Cars

B1599 Buick Skylark Damper High Side Rear Circuit Short To Battery
B1599 Oldsmobile Starfire Damper Low Side Front Circuit Failure
B1599 Lamborghini Gallardo Lp560 Shift/Timing Solenoid Low
B1599 Peerless Gt Drivers Seat Belt Buckle Switch Circuit Short to Battery
B1599 Porsche Carrera Gt Fuel Pulse In Range But Higher Than Expected
B1599 Isuzu 117 SCP (J1850) Invalid or Missing Data for Seat Motion / Control
B1599 Frazer Nash Falcon Normal/Performance Switch Circuit Malfunction