P1914 Diagnostic Trouble Code

P1914 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 P1914 diagnostic trouble code may include:

Rich or lean exhaust
Fuel pressure too low
Engine surge
Poor acceleration

Possible Causes :

Faulty IMRC actuator relay (if equipped)
A large air leak at or near the number one oxygen sensor would also cause a lean mixture.
Rarely - faulty Powertrain Control Module (PCM-programming required after replacement)

Repair Processes :

Use the DVOM to test resistance and continuity on all system circuits if actuator and sensor resistance levels are in compliance with manufacturer's specifications. With the valve disconnected, the red voltmeter lead should be attached to the IMRC valve power wire and the black voltmeter lead connected to ground. 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.

Process Tips

Diagnostic trouble code P1914 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 P1914.

Fortunately, P1914 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

P1914 Trouble Code For Specific Cars

P1914 Volkswagen Caddy 4 RESCU/VEMS Input Circuit Short to Ground
P1914 Audi S4 Audio CD/DJ Thermal Shutdown Fault
P1914 Faralli & Mazzanti Antas Injector Circuit Open / Shorted - Cylinder #1
P1914 Lancia Flavia Speed Wheel Sensor Rear Center Input Circuit Failure
P1914 Mercedes E 400 Acceleration Position Sensor Conflict
P1914 Oldsmobile Silhouette Damper LF Circuit Open
P1914 Mazda 818 Transmission Transfer Case Contact Plate Ground Return Open Circuit