The Lemon Index

Check engine light · Engine codes

P0452: Evaporative Emission System Pressure Sensor/Switch Low.

Powertrain · GenericP0452
Drive on, get it checked
What it means

The fuel tank pressure sensor reads too low.

How serious

Drive on, get it checked. You can usually keep driving. Have the code read at your next service or within a few weeks.

Where a shop starts

Failed sensor. Then: wiring fault.

Owners named P0452 in 12 complaints to the U.S. government, most often on the Ford Focus.

Cars owners report it on

Complaints that name P0452, by model. Raw counts, not a failure rate: popular models get more complaints.

The details

What P0452 means

The fuel tank pressure sensor reads too low.

Can I drive with P0452?

Drive on, get it checked. You can usually keep driving. Have the code read at your next service or within a few weeks.

42% of the owner complaints that name P0452 also say the car stalls or shuts off. A complaint can describe more than one problem, so this doesn't prove the code caused it.

Common causes of P0452
  • Failed sensor
  • Wiring fault

A shop should confirm the cause with a scan and tests before replacing parts.

What owners describe
  • Stalls or shuts off: 42% of complaints
  • Loses power or goes into limp mode: 33% of complaints

Share of complaints naming the code whose text also mentions each problem.

Related codes

P0451 P0455 P0456 P0457 P0449 P0448 P0446 P0445

Quick answers

What does P0452 mean?

Evaporative Emission System Pressure Sensor/Switch Low. The fuel tank pressure sensor reads too low.

Can I drive with P0452?

Drive on, get it checked. You can usually keep driving. Have the code read at your next service or within a few weeks.

What causes P0452?

Failed sensor; Wiring fault.

Counts: NHTSA owner complaints whose text names P0452. A complaint is an owner's report, not a diagnosis. Meanings: the standard SAE J2012 definitions in our own words; manufacturer codes only where verified for that make. General information, not repair advice for your car.

Updated · Free to use with credit: Source: The Lemon Index (lemonindex.com). Get the data

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