Standard Ignition AS121 Fuel Tank Pressure Sensor

Brand Standard Ignition AS121
Connector Gender Female
Connector Shape Rectangular
Connector Type Plug In
Mounting Location External
O.E.M. Replacement Yes
Terminal Gender Male
Terminal Type Blade
Fits Toyota · 4 vehicles

OE replacement. Direct-fit fuel tank pressure sensor for straightforward installation.

Plug-in connector. Rectangular female connector with blade terminals for secure hookup.

External mount. Black sensor with two ports and no mounting hardware included.

Cross-references Dayco 72723, Global Parts Distributors LLC 1811244 and Standard Ignition AS121 for the same application. See all 12.

$308.43Free shipping
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Fuel Tank Pressure Sensor for Toyota Applications

Standard Ignition AS121 is an OE replacement fuel tank pressure sensor built for external mounting and direct plug-in connection. It is a practical choice for diagnosing evaporative emissions system concerns on select Toyota models, including the 1998-1999 Toyota Camry, 1999 Toyota Avalon, and 1999 Toyota Solara.

  • OE replacement fuel tank pressure sensor
  • External mounting location
  • Black finish
  • Rectangular female connector with plug-in design
  • 3 blade terminals
  • 2 ports and 2 vacuum ports
  • No mounting bracket, mounting hardware, O-rings, or wiring harness included

Application Details

Standard Ignition AS121 is made for vehicles that use a fuel tank pressure sensor to monitor evaporative emissions system pressure. It cross-references Dayco 72723 for the same application. This part is listed for 1998-1999 Toyota Camry, 1999 Toyota Avalon, and 1999 Toyota Solara, making it a focused replacement for Toyota fuel tank pressure sensor service on these models.

Common Problems It May Address

  • Check engine light related to EVAP pressure sensor faults
  • Incorrect fuel tank pressure readings
  • Evaporative emissions system diagnostic trouble codes
  • Rough EVAP monitor performance during inspection readiness checks
  • Sensor failure from age, heat, or contamination

Installation Notes

Verify connector style, terminal count, port layout, and external mounting location before installation. Because no mounting hardware, O-rings, or wiring harness are included, reuse or source the required related components as needed. Confirm the vehicle’s EVAP system diagnosis before replacing the sensor to avoid unnecessary repairs.

Quality Assurance

Standard Ignition AS121 is an OE replacement part built to match the original sensor style used on the listed Toyota applications. It is intended for direct-fit service on the specified vehicles and should be installed following factory diagnostic procedures.

This part fits 4 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
1999ToyotaAvalon——N/A—
1999ToyotaCamry——N/A—
1999ToyotaSolara——N/A—
1998ToyotaCamry2.2LL4N/A—
Directly replaces or cross-references 12 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Dayco — 72723Global Parts Distributors LLC — 1811244Standard Ignition — AS1212-210135S247772-1596145-7671911198610499502528946006040EC2512SU4767