The purge valve is component to a vehicle's evaporative emissions system. For a 2003 Ford Ranger with the 2.3L L4 the vapor canister purge valve is Motorcraft part# CX2127. As of 2014 the wholesale cost for this part number is around 60$.
That's Fords twin plug ignition system to help reduce emissions
No, but the temperature senders are part of the emission system. If the thermostat malfunctions, the emission system will not operate at optimum levels.
Trouble code P1451 means: Evaporative Emission System Vent Control Circuit
Trouble code P0442 means:Evaporative emission control system leak detected (Small leak)
You would really need to have your Ranger scanned for any trouble codes to diagnose and then repair the malfunction with your emission control system . There are just too many possibilities
If the check engine light stays on , a malfunction with the emission control system has been detected , have your Ranger scanned for any trouble codes to diagnose and then repair the malfunction
If you have computer access you can surf to AutoZone.com and type in your vehicle specific information. Their system will have most of the part numbers and products listed that are for your specific vehicle (including the plugs). You don't have to download anything and it is free.
The check engine light comes on when a malfunction with the emission control system has been detected - if the light stays on ( and doesn't correct itself ) have the Ranger scanned for trouble codes to diagnose and then repair the malfunction
A check engine light means you have a possible problem with the emission system , you should get the Ranger scanned for trouble codes to diagnose and repair the problem . Once the problem has been repaired the check engine light can be reset.
evaporative emission control system incorrect puge flow
P0451 - Evap Emission Control System Pressure Sensor Performance Improving my answer - P0451 - intermittant open or short in the fuel tank pressure sensor ( FTP ) or the FTP sensor signal
What does service emission system warning mean on a Ford escape hybrid 2005?