P1632 Diagnostic Trouble Code

P1632 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 P1632 diagnostic trouble code may include:

Malfunction Indicator Lamp (MIL) illuminated
Carbon Buildup on O2 Sensor
Poor fuel economy
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.
A large vacuum leak would cause a massive amount of un-metered air to enter the intake manifold resulting in an overly lean mixture.

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. If the engine displays a miss and there wasn't a code, determine which cylinder is misfiring. If the exhaust manifold is visible, spay or pour a small amount of water on each cylinder exhaust port. Water will evaporate immediately on good cylinders and slowly on the missing cylinder. If this can't be accomplished pull the plugs and check the condition. 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.

Process Tips

Diagnostic trouble code P1632 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 P1632.

Fortunately, P1632 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

P1632 Trouble Code For Specific Cars

P1632 Honda Elysion Pressure Transducer Redundant / Secondary Signal Faulted
P1632 Adler 15 ABS Inlet Valve Coil RR Circuit Open
P1632 Mazda Drifter Transmission Transfer Case System Concern - Servicing Required
P1632 Innocenti 650 SCP (J1850) Invalid or Missing Data for Function Read Engine Torque
P1632 Renault 25 Gear 5 Incorrect ratio
P1632 Mercury Cyclone Air Suspension LR Air Spring/Shock Solenoid Output Circuit Short To Battery
P1632 Ford Xl Motor # 2 Input Circuit Short to Vbat