The Lemon IndexThe EVAP leak test's reference port reads low flow.
Drive on, get it checked. You can usually keep driving. Have the code read at your next service or within a few weeks.
Clogged leak detection module. Then: blocked vent filter.
Owners named P043E in 11 complaints to the U.S. government, most often on the Toyota Yaris.
Cars owners report it on
Complaints that name P043E, by model. Raw counts, not a failure rate: popular models get more complaints.
Years owners report it on most: 2007 Toyota Yaris
The details
What P043E means
The EVAP leak test's reference port reads low flow.
Can I drive with P043E?
Drive on, get it checked. You can usually keep driving. Have the code read at your next service or within a few weeks.
18% of the owner complaints that name P043E also say the car warning lights and electrical faults. A complaint can describe more than one problem, so this doesn't prove the code caused it.
Common causes of P043E
- Clogged leak detection module
- Blocked vent filter
A shop should confirm the cause with a scan and tests before replacing parts.
What owners describe
- Warning lights and electrical faults: 18% of complaints
Share of complaints naming the code whose text also mentions each problem.
Model years that report P043E most
2007 Toyota Yaris (2).
Related codes
P043F P0430 P0440 P0441 P0442 P0443 P0445 P0446
Quick answers
What does P043E mean?
Evaporative Emission System Leak Detection Reference Orifice Low Flow. The EVAP leak test's reference port reads low flow.
Can I drive with P043E?
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 P043E?
Clogged leak detection module; Blocked vent filter.
Counts: NHTSA owner complaints whose text names P043E. 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.