B1654 Diagnostic Trouble Code

B1654 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 B1654 diagnostic trouble code may include:

Diminished fuel efficiency
Fuel pressure too high
Malfunction Indicator Lamp (MIL) illuminated
Engine surge

Possible Causes :

Rusty exhaust systems, cracked exhaust manifolds or damaged or missing gaskets or donuts will cause air leaks.
An air leak forward of the DPF will change the sensor readings resulting in the code
Faulty IMRC actuator/sensor

Repair Processes :

Look at the plug wires to make sure they are not burnt or laying on the exhaust. You might continue by connecting the scanner to the vehicle diagnostic connector and retrieving all stored codes and freeze frame data. Look for damage to the tank indicating impact that may have damaged the fuel pump or sender.

Process Tips

Diagnostic trouble code B1654 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 B1654.

Fortunately, B1654 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

B1654 Trouble Code For Specific Cars

B1654 Aston Martin Db1 Air Suspension RR Air Compress Request Exceeded Max Timing
B1654 Lamborghini Countach Shift Time Error
B1654 Iso Rivolta
B1654 Daihatsu Copen Gear Shift Module Communication Circuit High
B1654 Nissan Bluebird Climate Control Temperature Differential Circuit Failure
B1654 Daewoo Prince
B1654 Gilbern Gt Oil Level Lamp Circuit Open