P0148

Fuel Delivery Error

Q: Is it safe to drive with P0148?

Not really. A fuel-delivery fault can cause the engine to stall or refuse to start, which can strand you. Drive minimally and repair it soon.

Q: Can I just clear P0148?

It will return until the fuel-supply problem is fixed. Because it points at pressure or delivery, diagnose the fuel system rather than just clearing it.

Fuel delivery Generic OBD-II Medium

What it means

P0148 means the amount of fuel actually delivered doesn't match what the ECM commanded — the fuel system isn't supplying the right pressure or volume. Because it's a real fuel-supply fault, it can cause hard starting, stalling, misfires, and loss of power. Start by checking fuel level and pressure before replacing parts.

Medium

Can I keep driving? Drive as little as possible — a genuine fuel-supply fault can cause stalling, hard starting, and power loss, and may leave you stranded, so repair soon.

Real-world scan data

Seen in

scans in the past year

Found in

<0.1%

of scans

<0.1%

of scans that found faults

Figures reflect only diagnostic scans recorded through our own apps and tools. Cars are typically scanned because a symptom or warning light prompted it, so these counts describe our scan records — not the incidence of faults in any model, and not the quality, reliability, or safety of any vehicle. No comparison between manufacturers or models is implied. All trademarks belong to their respective owners; no affiliation or endorsement is implied.

Common symptoms

What you'll notice

Check-engine light on
Hard starting or no-start
Stalling, especially under load
Misfire, rough running, or hesitation
Reduced power and poor fuel economy

Common causes

Most likely first

Clogged fuel filter or restricted fuel supply lineLikely
Weak or failing fuel pumpCommon
Faulty fuel pressure regulatorCommon
Faulty fuel pressure sensorLess often
Wiring fault in the fuel-delivery system, or very low fuel levelLess often

How to diagnose & fix

Work through it in order

Check the fuel level first, then scan and read freeze-frame data.
Measure fuel pressure against specification, both at idle and under load.
Inspect the fuel filter, supply lines, and pump for restriction or weak output.
Test the fuel pressure regulator and pressure sensor.
Repair any wiring faults, then clear and retest.

FAQ

Quick answers

Is it safe to drive with P0148?+

Not really. A fuel-delivery fault can cause the engine to stall or refuse to start, which can strand you. Drive minimally and repair it soon.

Can I just clear P0148?+

It will return until the fuel-supply problem is fixed. Because it points at pressure or delivery, diagnose the fuel system rather than just clearing it.

Read & clear P0148 yourself

Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.

▶ Get it on Google Play

✓ Verified name — SAE J2012 / ISO 15031-6Guidance reviewed by OBD DashX