U2345 Diagnostic Trouble Code

U2345 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 U2345 diagnostic trouble code may include:

Poor acceleration
Cherry red hot catalytic converter
Possible spark knock (detonation / pre-ignition)
The light may stay on or light intermittently as the DPF regenerates. The engine will be sluggish on acceleration.

Possible Causes :

Rough running engine due to misfiring plugs. Many engines have misfire codes to indicate the cylinder effected, such as P0307 for number 7.
Rarely - faulty Powertrain Control Module (PCM-programming required after replacement)
A large air leak at or near the number one oxygen sensor would also cause a lean mixture.

Repair Processes :

Oxygen sensors signal the engine management computer the amount of oxygen present in the exhaust, which is used in determining and controlling the fuel ratio. 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. Check to make sure they are not burnt or corroded. If in doubt, get some Electrical Contact cleaner at any parts store if cleaning of the terminals is needed.

Process Tips

Diagnostic trouble code U2345 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 U2345.

Fortunately, U2345 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

U2345 Trouble Code For Specific Cars

U2345 Mitsubishi Rpm Aux Heater Flame Sensor Circuit Open
U2345 Proton Juara Fuel Shutoff Valve Control Circuit H igh
U2345 Lancia Voyager Starter Motor Circuit Failure
U2345 Holden Te Power Window Master Circuit Failure
U2345 Pininfarina Chronos Engine Speed Input Circuit Intermittent
U2345 Peugeot 304 EGI Mini - MAF Failed Short Circuit
U2345 Toyota 4runner No Communication to VICS Module (No Fitting of VICS)