P1597 Diagnostic Trouble Code

P1597 is a kind of OBD-II Diagnostic P-Powertrain 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 P1597 diagnostic trouble code may include:

Misfire
Misfire
The light may stay on or light intermittently as the DPF regenerates. The engine will be sluggish on acceleration.
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
Defective ECU strategies or components will prevent proper regeneration

Repair Processes :

Look at the plug wires to make sure they are not burnt or laying on the exhaust. Pack the connector cavity with dielectric silicone compound (same stuff they use for light bulb sockets and spark plug wires) and reassemble. Find out what kind of system you have and verify that voltage to the fuel level sensor is present at the fuel pump wiring harness.

Process Tips

Diagnostic trouble code P1597 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 P1597.

Fortunately, P1597 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

P1597 Trouble Code For Specific Cars

P1597 Ram 2500 Fuel Temperature Sensor B Circuit High Input
P1597 Db Hbr HO2S Heater Control Circuit Low (Bank 2 Sensor 2)
P1597 Hyundai Clix SCAIR Solenoid Circuit Malfunction
P1597 Hrg 1500 Ride Control RF Shock Actuator Circuit Failure
P1597 Kieft 1100 Servo Motor Potentiometer Airintake Left Circuit Failure
P1597 Isuzu Amigo SCP (J1850) Invalid or Missing Data for Seat Switches
P1597 Hindustan Motors Contessa Pedal Correlation PDS1 and HPDS