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Infiniti G20 Vapor Canister Purge Solenoid Connectors

Infiniti G20 Vapor canister purge solenoid connectors

Starting at $23.95, AutoBuffy stocks 1 vapor canister purge solenoid connectors from Standard Ignition for the Infiniti G20. This connector delivers the electrical signal that tells the purge solenoid when to open and vent fuel vapors from the charcoal canister into the engine. A cracked, corroded, or loose connector disrupts that signal, triggering check engine lights and failed emissions tests.

Signs your Infiniti G20 needs a new vapor canister purge solenoid connector

  • Check engine light is on with stored codes P0443, P0444, or P0445 pointing to the purge solenoid control circuit
  • Rough idle or engine hesitation caused by an uncontrolled vacuum leak at the disconnected or broken connector
  • Noticeable fuel smell inside or around the vehicle due to unvented fuel vapors backing up in the EVAP system
  • Failed emissions or OBD-II readiness test because the EVAP system cannot complete its self-test without a reliable solenoid signal
  • Engine stalls or stumbles at low speeds when the solenoid misfires due to intermittent power or ground through a corroded terminal
  • Connector visibly cracked, melted near exhaust heat, or has green-corroded terminals that cause an intermittent fault that clears and returns

Which vapor canister purge solenoid connector should you buy for your Infiniti G20?

The main decision is whether to buy a bare pigtail connector, a connector already assembled with a short wiring lead, or a complete repair kit that includes terminals and weatherproof seals. Match the connector body style (number of pins, lock-tab design, and wire gauge) to the original plug on your Infiniti G20 so the solenoid seats and locks correctly without adapter splices.

OEM-match pigtail connector
Best for
Direct plug-and-play replacement with no soldering
What you get
Pre-terminated leads, factory-spec terminals, and a connector body molded to fit the original solenoid
Universal repair connector with terminals
Best for
Budget fix when only the terminals are corroded but the connector body is intact
What you get
Loose terminals, a generic connector housing, and dielectric grease — requires crimping or soldering
Weatherproof sealed connector kit
Best for
High-moisture environments or vehicles with repeated corrosion failures
What you get
Silicone-sealed connector body, tinned copper terminals, and heat-shrink leads for long-term protection
Complete EVAP solenoid connector + wire harness section
Best for
Vehicles where heat damage or rodent chewing has destroyed several inches of wiring beyond the connector
What you get
Pre-spliced harness segment with the connector pre-installed, ready for butt-connector or solder-sleeve repair

Vapor canister purge solenoid connectors brands we stock for your Infiniti G20

Standard Ignition
1 option · from $23.95

Replacing the vapor canister purge solenoid connector on a Infiniti G20

Easy⏱ 30–60 minutesOBD-II scanner (to clear fault codes)Multimeter (to verify circuit before and after repair)Wire stripper and crimping tool or soldering ironDielectric greaseBasic trim-removal pick or flathead screwdriver

Locate the purge solenoid on the Infiniti G20 — typically mounted near the intake manifold or along the EVAP line routing — and depress the lock tab to unplug the old connector. Cut the damaged connector from the harness leaving adequate wire length, then splice on the new pigtail using heat-shrink butt connectors or solder-and-seal sleeves. Apply dielectric grease to the new terminals before plugging in, then clear any stored codes and confirm the EVAP readiness monitor completes on a test drive.

Frequently asked questions

How much does it cost to replace vapor canister purge solenoid connectors on a Infiniti G20?
The part itself starts at $23.95 at AutoBuffy. DIY total cost stays near that price since the repair usually requires only basic hand tools and 30–60 minutes. A shop will add one to two hours of labor, so professional replacement typically runs meaningfully more depending on local labor rates.
Can a bad purge solenoid connector cause my Infiniti G20 to fail an emissions test?
Yes. A faulty connector prevents the ECM from controlling the purge solenoid, which leaves the EVAP system unable to complete its OBD-II readiness monitor. The resulting stored fault code and incomplete monitor will cause a direct emissions failure in most states. Replacing the connector and clearing the code is required before retesting.
Is the vapor canister purge solenoid connector the same as the solenoid itself on a Infiniti G20?
No. The solenoid is the electromechanical valve that opens and closes to vent fuel vapors. The connector is the wiring harness plug that delivers power and ground to that valve. If the solenoid tests electrically sound but the circuit code persists, the connector or its terminals are often the actual failure point.
How do I know the connector is bad and not the purge solenoid on my Infiniti G20?
Unplug the connector and inspect terminals for corrosion, spread pins, or cracking. With a multimeter, check for battery voltage on the power terminal with the key on, and confirm a good ground. If voltage is absent or intermittent at the connector but the solenoid coil resistance tests within spec, replace the connector, not the solenoid.
Will driving with a broken purge solenoid connector damage my Infiniti G20?
Short-term driving is generally safe, but fuel vapors will not be properly routed into the intake, reducing efficiency and increasing emissions. Prolonged open-circuit conditions can occasionally allow excess vacuum or pressure to stress other EVAP components. Address the repair promptly to avoid a cascade of related EVAP fault codes and canister damage.
Do I need to reprogram or reset anything after replacing the connector on a Infiniti G20?
No reprogramming is needed. After replacing the connector and verifying a secure, corrosion-free fit, clear the stored EVAP fault codes with an OBD-II scanner. Then drive through a full EVAP readiness cycle — typically several cold-start and warm drive cycles — so the ECM can confirm the system is functioning and close the readiness monitor.

Shop vapor canister purge solenoid connectors by year for the Infiniti G20

200220012000

More parts for your Infiniti G20

Exhaust Pipe Flange GasketClutch Slave CylinderBrake RotorFuel Injector Seal KitA/C CompressorHVAC RelayComplete StrutAir Strut Set

Vapor canister purge solenoid connectors for other Infiniti models

Infiniti FX35Infiniti Q70Infiniti QX60Infiniti M56Infiniti M45Infiniti M35h