P1626 Diagnostic Trouble Code

P1626 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 P1626 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.
Diminished fuel efficiency

Possible Causes :

Faulty IMRC actuator/sensor
A large vacuum leak would cause a massive amount of un-metered air to enter the intake manifold resulting in an overly lean mixture.
An air leak forward of the DPF will change the sensor readings resulting in the code

Repair Processes :

If the scan tool has that capability, and the scan tool can operate the IMRC valves, then the problem is either resolved and a simple code clearing is all that's left or a new PCM would be called for. 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 P1626 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 P1626.

Fortunately, P1626 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

P1626 Trouble Code For Specific Cars

P1626 Honda Capa Pressure Control Solenoid C Performance or Stuck off
P1626 Durkopp 24 Hp Immobilizer to PCM Signal Error
P1626 Suzuki Alto Works Memory 1 Switch Circuit Short To Ground
P1626 Delahaye 148 Hydraulic Pressure Sensor Circuit
P1626 Maico 500 Traction Control Valve RF Circuit Short To Ground
P1626 Lamborghini Islero Shift/Timing Solenoid Range/Performance
P1626 Bmw M Clutch Actuator Circuit Low