U0087 Diagnostic Trouble Code

U0087 is a kind of OBD-II Diagnostic U-Network 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 U0087 diagnostic trouble code may include:

Faulty PCM
The light may stay on or light intermittently as the DPF regenerates. The engine will be sluggish on acceleration.
Poor acceleration
Hesitation upon acceleration

Possible Causes :

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

Repair Processes :

Look for damage to the tank indicating impact that may have damaged the fuel pump or sender. If the engine displays a miss and there wasn't a code, determine which cylinder is misfiring. If the exhaust manifold is visible, spay or pour a small amount of water on each cylinder exhaust port. Water will evaporate immediately on good cylinders and slowly on the missing cylinder. If this can't be accomplished pull the plugs and check the condition. Pack the connector cavity with dielectric silicone compound (same stuff they use for light bulb sockets and spark plug wires) and reassemble.

Process Tips

Diagnostic trouble code U0087 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 U0087.

Fortunately, U0087 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

U0087 Trouble Code For Specific Cars

U0087 Volkswagen Karmann Ghia Right Lamp Outage Signal Circuit Short to Ground
U0087 Renault Juvaquatre Glow Plug/Heater Circuit "A" Malfunction
U0087 Toyota Rsc Park Lamp Flash Relay Circuit Short to Battery
U0087 Oldsmobile 98 Cylinder 5 Misfire Detected
U0087 Ferrari 553 Intake Manifold Runner Control Circuit Malfunction
U0087 Panhard Et Levassor Gordon-bennet Driver Power Window Motor Circuit Short To Battery
U0087 Fiat 8v LAMP DOME OUTPUT Circuit Failure