P2263 Turbo or supercharger boost not matching the computer target (system A)

Turbocharger/supercharger A boost system performance

P2263 in short

P2263 means boost from the turbocharger is not matching what the computer asked for. Causes range from snow in the air cleaner (some GM vans), engine computer software on some diesels, a broken wastegate actuator or a boost sensor or leak. Expect reduced power, and have it inspected soon.

The computer compares requested boost with measured boost. P2263 sets when the two do not agree for long enough, either because the turbo is making too little (or too much) or because a sensor or leak is giving a wrong reading.

GM has a bulletin on 2011-2016 Express and Savana vans where snow or ice ingested into the air cleaner restricts the air and sets P2263. Nissan reprograms the engine computer on the 2016 Titan XD, and Ford updates PCM software on 2017 Super Duty. Owners also report a broken wastegate actuator arm on a 2017 Jetta.

The older Ford 6.0L diesel has its own run of bulletins about low power and P2263 with turbo service tips.

Most likely causes

  1. Snow, ice or a restriction in the air intake (GM vans)

    Supported by vehicle data
    Why it ranks here
    GM PI1164B says snow or ice drawn into the air cleaner housing can restrict airflow and set P2263 with reduced power on 2011-2016 Express and Savana.
    What would change this
    Rises if the air cleaner housing is wet, packed with snow or the filter is blocked. Falls if the intake is clear.

  2. Engine computer software that needs an update (some diesels)

    Supported by vehicle data
    Why it ranks here
    Nissan NTB16-037 (2016 Titan XD) and Ford TSB 19-2082 (2017 Super Duty) fix P2263 by reprogramming the engine computer.
    What would change this
    Rises if the VIN is covered and the software is not current. Falls if it is current.
    How to test the engine control module (ecm / pcm)

  3. Wastegate or turbo actuator fault

    Supported by vehicle data
    Why it ranks here
    A 2017 Jetta owner reports a broken wastegate actuator arm for P2263, and two Juke owners report the code as a turbo boost system fault. KBB lists the turbo control solenoid and turbo failure.
    What would change this
    Rises if the actuator does not move when commanded. Falls if it moves freely.

  4. Boost or MAP sensor fault or a leak in the boost piping

    Common general cause
    Why it ranks here
    KBB lists the MAP sensor, brake booster pressure sensor, wiring and a weak battery among the causes.
    What would change this
    Rises if the sensors disagree or smoke shows a leak. Falls if sensors and piping check out.
    How to test the vacuum hoses and intake leaks

What to test first

Start at step 1. Each result tells you what it means and where to go next.

  1. Read all codes and freeze-frame data. Note any P0299, P0101, P2002 or P2459 stored with P2263.

    Low riskTool: OBD-II scan tool

    • IfP0299 stored too (underboost)

      It meansCheck for a leak or actuator fault.

      Go to step 3

    • IfP2263 alone or with other diesel codes

      It meansCheck bulletins.

      Go to step 2

  2. Ask a dealer whether your VIN has a software or air intake bulletin for P2263 (GM Express and Savana, Nissan Titan XD, Ford Super Duty, Ram 2500/3500).

    Low risk

  3. With the engine off, check the air cleaner housing and filter for snow, ice, water or a blockage, and look at the boost piping for loose or split hoses.

    Low risk

  4. Have the wastegate or turbo actuator commanded and boost sensors compared on a scan tool.

    Best left to a shopTool: bidirectional scan tool

    Warning:Turbo parts and exhaust are hot. Leave this to a shop.

Symptoms

  • Check engine light
  • Reduced engine power with a Service Engine message Gets more serious: stop and have it checked.
  • Poor acceleration or rough running

Compare with: Check engine light with loss of power

How to fix

  1. With the engine off, look for snow, ice or debris in the air cleaner housing.

  2. Ask a dealer whether your VIN has an open software bulletin for P2263.

Parts and cost context

  • Vacuum hoses and intake leaks:Check boost hoses first; they are the cheapest cause. Labour varies; get a quote.

Labor varies by vehicle and shop; get a quote before you approve a repair.

Compare used part prices on PartPriceGuide

On your vehicle

Chevrolet

  • 2011–2016 · Express

    Supported by vehicle data

    GM bulletin PI1164B ties P2263 and reduced power to snow or ice in the air cleaner housing.

  • PI1164B (chevrolet)Status unverified

    Reduced engine power with P2263

    2011–2016express · NHTSA 10201124

    Snow or ice ingested into the air cleaner housing can restrict airflow.

    We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.

  • 15-NA-084Status unverified

    Rough running, poor acceleration, exhaust smell with P0101 P0299 P2002 P2263 P2463

    2014–2015cruze · NHTSA 10074312

    Diesel Cruze concern; DTCs may set.

    We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.

Nissan

  • NTB16-037Status unverified

    MIL with engine DTCs including P2263 (Titan XD)

    2016titan · NHTSA 10075213

    Reprogram the engine computer.

    We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.

Volkswagen

  • P0299Turbocharger or supercharger is producing less boost than the engine computer requested

    Same system Supported by vehicle data

    P0299 (turbo underboost) is the sister code; GM 15-NA-084 lists P0299 with P2263 on the Cruze diesel.

  • P2002Diesel particulate filter not trapping soot well enough (bank 1)

    Same system Possible — needs testing

    GM 15-NA-084 lists P2002 (diesel particulate filter efficiency) with P2263 on the same diesel concern.

All Turbocharging, fuel pressure and EGR codes

P2263 questions

Can snow cause P2263?

On 2011-2016 Chevrolet Express and GMC Savana vans, GM says snow or ice in the air cleaner housing can restrict airflow and set it.

Is P2263 safe to drive?

Expect reduced power, and KBB advises not to keep driving. Have it inspected soon.

Sources and review

  1. P2263 code: turbocharger/supercharger A boost system performance — Kelley Blue Book (KBB Service Advisor)
  2. GM PI1164B: reduced engine power with Service Engine message and P2263 (2011-2016 Express and Savana) — General Motors / NHTSA
  3. Nissan NTB16-037: MIL with engine DTCs including P2263 (2016 Titan XD) — Nissan North America / NHTSA
  4. Ford TSB 19-2082: MIL with only P2263 among other DTCs, PCM software (2017 Super Duty) — Ford Motor Company / NHTSA
  5. NHTSA complaint ODI 1829658: 2017 Volkswagen Jetta, P2263 — NHTSA Office of Defects Investigation (owner complaint)
  6. NHTSA complaint ODI 1209569: 2011 Nissan Juke, P2263 — NHTSA Office of Defects Investigation (owner complaint)
  7. NHTSA complaint ODI 1570090: 2015 Nissan Juke, P2263 — NHTSA Office of Defects Investigation (owner complaint)
  8. GM 15-NA-084: rough running, poor acceleration, exhaust smell, P0101 P0299 P2002 P2263 P2463 (2014-2015 Cruze diesel) — General Motors / NHTSA
  9. Ram bulletin 08-272-26: DTC list including P2263-00 turbo boost system performance (2023-2026 2500/3500) — Stellantis (FCA) / NHTSA
  10. Ford TSB 17472: low power and/or P2263 (2003-2004 6.0L diesel) — Ford Motor Company / NHTSA
Last reviewed
Written by
Saurabh K.
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