P2290 critical

Injector Control Pressure Too Low

The P2290 code means the vehicle's onboard diagnostic system has detected: Injector Control Pressure Too Low. This is a critical severity code.

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Keep driving?: No -- stop driving
DIY difficulty: hard
Estimated cost: $300 - $2000 (parts and labor)

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Common Symptoms

Engine will not start or hard to start
Rough idle and misfires
Excessive white or black smoke from exhaust
Loss of engine power
Check Engine Light illuminated

Probable Causes (Ranked by Likelihood)

Failing high-pressure oil pump (diesel) Very High
Leaking injector O-rings or seals High
Low engine oil level Moderate
Failed injection pressure regulator valve Moderate

Step-by-Step Diagnostic Procedure

Check engine oil level and condition
Monitor injector control pressure with a scan tool during cranking
Inspect high-pressure oil pump operation and output pressure
Check for oil leaks at injector O-rings and connections
Test the injection pressure regulator valve function

Frequently Asked Questions

Can I drive with code P2290?

No, do not drive. Low injector control pressure means the engine cannot properly inject fuel, leading to potential stalling and further engine damage.

What causes P2290?

Most commonly seen on diesel engines with high-pressure oil injection systems. A failing high-pressure oil pump or leaking injector seals are the typical causes.

Is P2290 expensive to fix?

Costs range from $300 to $2000. Diesel injection system repairs are complex and labor intensive. Check engine oil level first as it is the simplest potential fix.