- P -

PC Seals

Valve stem seals made by Perfect Circle that have Teflon inserts to wipe the stems clean.

PCA

Abbreviation for Powertrain Controller (EPIC -electronic minivan ) ((Chrysler)).

PCI

Abbreviation for Programmable Communication Interface (aka J1850 Bus( (( Chrysler)).

PCI Bus

Various modules exchange information through a communications port called the programmable communications interface (pci) Bus.

PCM

Powertrain control module.

PCS

Purge control solenoid.

PCSDM

Passenger compartment sensor/diagnostic module.

PCSV

Purge control solenoid valve.

PCV

An abbreviation for positive crankcase ventilation.

PCV Hose

A Neoprene-or synthetic-rubber hose that is connected to one or both ends of a PCV valve.

PCV Valve

A vacuum-controlled metering device that regulates the flow of crankcase ventilation system by allowing more flow at high speed than at low speed, and acts as a system shutoff in case of engine backfire to prevent an explosion in the crankcase. .

PCV-DOV

Positive crankcase ventilation-dual orifice valve.

PCV-HCB

Positive crankcase ventilation-heated crankcase breather.

PCVV

Positive crankcase vent valve.

Pd

Palladium An element with the atomic number of 46.

PDAS

(Porsche) Porsche Dynamic All Wheel Drive Control System.

PDI

An abbreviation for predelivery inspection.

Peak

Maximum, as in peak horsepower, meaning maximum horsepower.

Peak And Hold

Full current applied to an injector to rase the pintle, then reduced to hold the pintle up for the remainder of the pulse width.

Peak Detection

An acquisition mode available with digital oscilloscopes that enables you to observe signal details that may otherwise be missed.