P2AB7 Diagnostic Trouble Code

P2AB7 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 P2AB7 diagnostic trouble code may include:

If the DPF is not cleared the ECU will revert to the "Limp Home Mode" until the situation is corrected
Corroded or damaged connector
Reduction in engine performance, especially at low RPM levels
The light may stay on or light intermittently as the DPF regenerates. The engine will be sluggish on 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.
Fuel with a large percentage of sulfur will clog the DPF quickly

Repair Processes :

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. 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 P2AB7 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 P2AB7.

Fortunately, P2AB7 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

P2AB7 Trouble Code For Specific Cars

P2AB7 Skoda Scala Lack Of HO2S Switch - Sensor Indicates Rich
P2AB7 Zis 112 Seat Belt Switch Circuit Open
P2AB7 Wolseley 14 SCP (J1850) Invalid or Missing Data for Seat Switches
P2AB7 De Dion Bouton Doctors HO2S Insufficient Switching Sensor 1
P2AB7 Rolls-royce 20 Hydraulic Pressure Unit Cycling Period Too Short
P2AB7 Datsun 100 Heated Windshield Relay Coil Circuit Failure
P2AB7 Packard 7 DPFE Sensor Upstream Hose Off Or Plugged