P       		Park                                 

P       		Pattern Select Switch                

P       		*Parking *Power *Positive *Pitch *Pilot lamp *Page *Pair *Ply  

P       		Park                                 

P       		Peta                                 

P       		Pico                                 

P       		Page                                 

P       		Pitch                                

P       		Ply                                  

P       		Positive                             

P       		Power                                

P       		Passable                             

P       		Pressure                             

P-AIR   	Pulse Air Induction Reactor          

P-Y-R   	Pitch-Yaw-Roll                       

P.C.    		Pitch Circle                         

P.D.    		Pitch Diameter                       

P.F.    		Power Factor                         

P.S.    		Petrol Station                       

P.T.O.  	Power Takeoff                        

P.U.    		Pickup                               

P/B     		Power Brakes                         

P/C     		Printed Circuit                      

P/C     		Parts Catalog                        

P/N     		Park/Neutral                         

P/S     		Powder Steering                      

P/S Pres Sw 	Power Steering Pressure Switch 

PAB     	Power-Assisted Brake                 

PACV    	Pulse Air Check Valve               

PAF     	Pulse Air Feeder                    

PAI or PAIR  	Pulse Air Injection         

PAIR    	Pulse Air Injection Reaction System  

PAN     	Peroxy Acy1nitrate                   

PAS     	Pulse Air Solenoid or System        

PAS     	Pulse Air Solenoid                 

PASS    	Passenger                            

PASS.   	Passenger                            

PAT     	Patent                               

PAV     	Pressure-Actuated-Venting            

PBD     	Pitch Circle Diameter                

PC      		Personal Computer                    

PC      		Program Controlled                   

PC      		Piece                               

PC      		Prechamber(engine)                   

PC-SOL  	Purge Control Solenoid               

PCB     	Printed Circuit Board                

PCC     	Part-Load Cylinder Cutout (system)   

PCF     	Pounds Per Cubic Foot                

PCI     		Prechamber Injection (combustion process) 

PCM     	Powertrain Control Module             

PCOV    	Purge Control Valve                   

PCSDM   	Passenger Compartment Sensor/Diagnostic Module 

PCT     	Precombustion Chamber Turbocharged   

PCTA    	Precombustion Chamber Turbocharged Aftercooled

PCU     	Power Conditioning Unit              

PCU     	Power Control Unit                   

PCV     	Positive Crankcase Ventilation      

PCV     	Purge Control Valve                 

PCV     	Pressure Control Valve              

PCV VALVE  	Positive Crankcase Ventilation Valve

PD      		Protective Devices                   

PECV    	Power Enrichment Control Valve       

PET.    	Petrol                               

PET.    	Petroleum                            

PETRL   	Petroleum                            

PEVR    	Power Enrichment Vacuum Regulator    

PF      		Picofarad                            

PFAC    	Pedal Free Auto Choke                

PFE     	Exhaust Pressure Transducer         

PFE     	Pressure Feedback Electronic EGR     

PFI     		Port Fuel Injection                  

PFI or PGM-FI   Programmed Fuel Injection    

PGCV    	Purge Control Valve                  

PGM-CARB    	Programmed Carburetor        

PGM-FI  	Programmed Fuel Injection(HONDA)     

PH      		Potential of Hydrogen                

PHCV    	Power Heat Control Valve             

PHDV    	Power Heat Delay Valve               

PHE     	Programmable High Energy(ignition system)

PI      		Petrol-Injection                     

PIN     	Product Identification Number        

PIP     		Profile Igntion PickUp               

PIST    	Piston                               

PK,PK   	Park                                 

PKG     	Package                              

PKG.    	Package                              

PL      		*Pay load *Pilot Light               

PL      		Part Load                            

PLBS    	Partial Lean Burn System             

PLS     	Pulsating Air System                 

PM      	Preventive Maintenance               

PM      	Powder Matallurgy                   

PNEU    	Pneumatic                           

PNK     	Pink                                

PNL     	Panel                                

PNP SWITCH   Park/Neutral Position Switch 

POS     	Positive                             

Postn.  	Position                             

Pot.    		Potentiometer                        

PPF     	Pounds Per Foot                      

PPG     	Pulses Per Gallon                    

PPL     	Purple                               

PPM     	Parts Per Million                    

PPS     	Ported Pressure Switch              

PPS     	Progressive Power Steering           

PQC     	Production Quality Control          

PR      		Ply Rating                           

PR      		Ply-Rating(of tires)                 

PR-CV   	Pressure Control Valve               

PR.REGUL    	Pressure Regulatior          

PRC     	Programmable Ride Control            

PRES    	Pressure                             

PRESS.REGUL     Pressure Regulator           

PRGMR   	Programmer                          

PRGMR.  	Primary                            

PRI     		Primary                           

PRNDL   	Park/Reverse/Neutral/Drive/Low     

PROCC   	(Ford) Programmed Controlled Combustion (system) 

PROG    	Programmable                        

PROM    	Programmable Read Only Memory       

Prom.   	Programmable                       

PRTL    	Partial                            

PRV     	Pressure Regulating Valve           

PRY     	Primary                            

PS      		Push Switch                         

PS      		Power Steering                      

PS      		Polystyrene                         

PS      		Pneumatic Suspension                

PS      		Power-Assisted Stecring             

PSCU    	Power Steering Control Unit         

PSD     	Partical Shut Down                  

PSG     	Pressure Compensated Simple Governor

PSI     		Pound Per Square Inch               

PSIA    	Pound Per Square Inch Absolute      

PSON    	Programmable Speedometer/ OdometerModule

PSOV    	Purge Shutoff Valve                 

PSP     	Power Steering Pressure             

PSPS    	Power Steering Pressure Switch      

PSR     	Power Steering Relay                

PSS     	Pattern Select Switch               

PSTC    	Power Steering Test Connector       

PSV     	Pulse Air Shutoff Valve            

PSV     	Public Service Vehicle              

PSV     	Power Steering Valve                

PT      		Part Throttle                       

PT.     		Pint                                

PTC     	Positive Temperature Coefficient    

PTCH    	Positive Temperature Coefficient Heater

PTE.STA.      	Petrol Station              

PTFE    	Polytetrafluoroethylene             

PTO     	Power Take Off                     

PTOS    	Power Takeoff System  

Pts     		Pints       

PTU     	Partial Throttle Unlock             

PURGE CV    	Purge Control Valve (canister purge valve) 

PV      		Pulse Air Valve                     

PVA     	Ported Vacuum Advance              

PVBrk   	Primary Vacuum Break                

For contact , remarks , info or suggestions:

PVC     	Polyvinyl Chloride                  

PVCS    	Power Vlave Control System        

PVFFC   	Pressure/Vacuum Fuel Filler Cap     

PVS     	Ported Vacuum Switch              

PW      	Pulse Width                         

PWM     	Pulse Width Modulated               

Pwr     	Power                              

PWRGND  	Power Ground                    

PX      		Pistion Engine