The Lemon IndexThe fuel pressure control circuit reads too low (often a short to ground).
Get it fixed soon. A few more days of normal driving is usually OK, but waiting can turn a small repair into a bigger one or a breakdown.
Shorted wiring. Then: failed regulator.
Owners named P0091 in 5 complaints to the U.S. government, most often on the Chevrolet Traverse.
Cars owners report it on
Complaints that name P0091, by model. Raw counts, not a failure rate: popular models get more complaints.
The details
What P0091 means
The fuel pressure control circuit reads too low (often a short to ground).
Can I drive with P0091?
Get it fixed soon. A few more days of normal driving is usually OK, but waiting can turn a small repair into a bigger one or a breakdown.
40% of the owner complaints that name P0091 also say the car loses power or goes into limp mode. A complaint can describe more than one problem, so this doesn't prove the code caused it.
Common causes of P0091
- Shorted wiring
- Failed regulator
A shop should confirm the cause with a scan and tests before replacing parts.
What owners describe
- Loses power or goes into limp mode: 40% of complaints
Share of complaints naming the code whose text also mentions each problem.
Related codes
P0090 P008A P0089 P0088 P0087 P0068 P00C6 P0037
Quick answers
What does P0091 mean?
Fuel Pressure Regulator 1 Control Circuit Low. The fuel pressure control circuit reads too low (often a short to ground).
Can I drive with P0091?
Get it fixed soon. A few more days of normal driving is usually OK, but waiting can turn a small repair into a bigger one or a breakdown.
What causes P0091?
Shorted wiring; Failed regulator.
Counts: NHTSA owner complaints whose text names P0091. 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.