Keep your EVAP system flowing and seal in fuel vapors with the Standard Ignition Vapor Canister Purge Valve, MPN CP104. It installs as a direct-fit replacement for the 1987 Buick Century and the 1983-1984 Pontiac Firebird, restoring proper purge control on the listed applications.
A purge valve controls the flow of fuel vapor from the charcoal canister to the intake, so stored vapors are drawn in and burned during normal engine operation. When commanded open, it lets manifold vacuum pull the vapors through; the rest of the time it stays closed to keep the evaporative-emissions system sealed.
Interchange: CP307 · PV107 · 2-28011 · 228011 · 17074286 · 17089080. Manufacturer part number CP104.
This part cross-references / interchanges with the following part numbers:
What does this purge valve do?
It controls the flow of fuel vapor from the charcoal canister to the intake, letting stored vapors be drawn in and burned, then closing to keep the EVAP system sealed.
Which vehicles does the CP104 fit?
It is a direct-fit replacement for the 1987 Buick Century and the 1983-1984 Pontiac Firebird. Check the Buyer's Guide tab to confirm fitment for your vehicle.
What numbers does this part interchange with?
It cross-references CP307, PV107, 2-28011 (228011), 17074286, and 17089080. Its own manufacturer part number is CP104.
What are signs the purge valve may need replacing?
Rough idle, EVAP-related check-engine codes, hard starting, or a fuel-vapor smell can be signs. These have other possible causes, so diagnose before replacing.
Will replacing this fix my rough idle?
If a failed purge valve is the cause of the rough idle, this replaces it. Other components can cause the same symptom, so confirm the diagnosis first.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
