P2290 — Injector Control Pressure Too Low

OBD2 code P2290 flags a problem with the fuel delivery and mixture control (injector control pressure too low). Short, gentle driving to a shop is usually possible. Common culprits: clogged or leaking fuel injectors, faulty fuel rail pressure sensor or wiring, contaminated or incorrect fuel.

powertrain (engine/transmission)

Is it safe to drive?

Drive with caution Drive with caution. Mixture and fuel-pressure faults can cause stalling, hesitation in traffic and — when severe — catalyst damage. Avoid long trips until diagnosed.

How to diagnose with an OBD scanner

Read the code and freeze frame Connect an OBD2 scanner, confirm P2290 is stored, and save the freeze frame data — it shows engine conditions when the fault was detected.
Check for companion codes and TSBs Related codes often reveal the real root cause. Also check manufacturer technical service bulletins (TSB) for your make and model — many P0xxx issues have factory fixes or software updates. Search by VIN on the manufacturer site or nhtsa.gov.
Inspect wiring and connectors Visually inspect the wiring harness and connectors related to the fuel delivery and mixture control for damage, corrosion, chafing or poor contact.
Subsystem check Measure fuel pressure at the rail and compare with factory specification at idle and under load.
Subsystem check Check short-term and long-term fuel trims in live data to see which way the mixture is off.
Verify the repair Clear the code, complete a full drive cycle including the conditions from the freeze frame, and confirm P2290 does not return.

Approximate repair cost

Repair cost depends on which component actually failed. Typical scenarios for P2290 (parts and labor, USD, independent shop rates): Replace the fuel filter: $80–$200; Clean or replace injectors: $200–$800; Replace the pressure regulator or sensor: $150–$450; Replace the fuel pump: $400–$900. Overall, fixing P2290 usually costs between $80 and $900. An accurate diagnosis before buying parts saves money — the most expensive scenario is rarely the first one to check.

Common questions

Is it safe to drive with P2290?

Drive with caution. Mixture and fuel-pressure faults can cause stalling, hesitation in traffic and — when severe — catalyst damage. Avoid long trips until diagnosed.

What is the most common cause of P2290?

The most common causes are: clogged or leaking fuel injectors, faulty fuel rail pressure sensor or wiring, contaminated or incorrect fuel.

What are the symptoms of P2290?

Drivers most often notice: hard starting or long cranking, fuel smell in severe cases, rough idle and hesitation, increased fuel consumption.

What does OBD2 code P2290 mean?

How do I diagnose P2290 myself?

Start with a scan: confirm P2290, save the freeze frame and note any companion codes. Then inspect the wiring and connectors related to the fuel delivery and mixture control, and verify the suspect component against live data before buying parts.

What does P2290 mean?

When P2290 appears on a scan, it means the control module has flagged a problem in the fuel delivery and mixture control: injector control pressure too low. The fault sits in the powertrain (engine/transmission) group of the OBD2 standard.

To set P2290, the control module compares live readings of the fuel delivery and mixture control against calibrated limits, usually over several drive cycles. Alongside the code it stores a freeze frame — a snapshot of rpm, load, coolant temperature and vehicle speed at the moment of failure. Reading that snapshot first saves diagnostic time.

What causes P2290?

vacuum or intake leaks skewing the mixture
faulty fuel rail pressure sensor or wiring
weak fuel pump or clogged fuel filter
clogged or leaking fuel injectors
faulty fuel pressure regulator
contaminated or incorrect fuel

Common symptoms of P2290

hard starting or long cranking
fuel smell in severe cases
rough idle and hesitation
increased fuel consumption
loss of power under load
Check Engine Light on

How to diagnose P2290

Connect an OBD2 scanner, confirm P2290 is stored, and save the freeze frame data — it shows engine conditions when the fault was detected.
Related codes often reveal the real root cause. Also check manufacturer technical service bulletins (TSB) for your make and model — many P0xxx issues have factory fixes or software updates. Search by VIN on the manufacturer site or nhtsa.gov.
Visually inspect the wiring harness and connectors related to the fuel delivery and mixture control for damage, corrosion, chafing or poor contact.
Measure fuel pressure at the rail and compare with factory specification at idle and under load.
Check short-term and long-term fuel trims in live data to see which way the mixture is off.
Clear the code, complete a full drive cycle including the conditions from the freeze frame, and confirm P2290 does not return.

How to fix P2290

Start with the cheapest and most common causes before replacing expensive parts:

Replace the fuel filter — $80–$200
Clean or replace injectors — $200–$800
Replace the pressure regulator or sensor — $150–$450
Replace the fuel pump — $400–$900

How much does it cost to fix P2290?

Repair cost depends on which component actually failed. Typical scenarios for P2290 (parts and labor, USD, independent shop rates):

Replace the fuel filter: $80–$200
Clean or replace injectors: $200–$800
Replace the pressure regulator or sensor: $150–$450
Replace the fuel pump: $400–$900

Overall, fixing P2290 usually costs between $80 and $900. An accurate diagnosis before buying parts saves money — the most expensive scenario is rarely the first one to check.

Can you drive with P2290?