Powertrain, generic (extended)

P2290 Injector Control Pressure Too Low

Check engine lightOn
EmissionsRelevant
Drive cycleNot required
Limp modePossible

P2290 belongs to the injector control pressure (ICP) family of hydraulically actuated unit injector (HEUI) diesels such as the Navistar-built Ford 6.0 L Power Stroke, where pressurised engine oil fires the injectors. Ford's 2003 and 2004 summaries run the check every 8 ms with the engine running and set it once actual ICP stays more than 3.0 MPa below the PCM's command for longer than 7 s; Ford's 2014 PCM code table marks it as a MIL code. Typical culprits are an injection pressure regulator that no longer seals, leaking high-pressure oil fittings or O-rings, a worn high-pressure oil pump, or low or aerated oil. Expect hard starting, low power and rough running. P2291 is the cranking variant, P2288 the overpressure case.

Likely causes

Injection pressure regulator (IPR) contaminated or not sealing
Leaking high-pressure oil rail fittings, stand pipes or O-rings
Worn high-pressure oil pump
Low, wrong or aerated engine oil

Symptoms

  • Hard starting, especially when hot
  • Lack of power and rough running
  • Check engine light

Repair estimate

DifficultyHardWorkshop job
Parts and labour€150–2,500
Time1–8 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

injection pressure regulatorhigh pressure oil pump

Related codes

P2291P2288P2284P2283P2292

References: fordservicecontent.com, fordservicecontent.com, performanceparts.ford.com, en.wikipedia.org.