EN

Severity: HighFord

P0234 on Ford Vehicles

Boost rose above the safe limit the engine computer allows, so it may cut power to protect the engine. P0234 →

10Complaints mentioning the code
#1Rank among 4 brands
0.4%Share of Ford DTC complaints

In NHTSA owner complaints we analyzed for Ford, P0234 was mentioned 10 times.

Most mentioned models

Ford Escape8
Ford F-150 SUPER CREW1
Ford Fusion Energi1

Model years mentioned

Model years mentioned – Ford P0234111613214117
2011: 1 · 2013: 6 · 2014: 2 · 2017: 1

Components named in these complaints

  • Engine (10)
  • Power Train (4)
  • Fuel/propulsion System (4)
  • Electrical System (3)
  • Vehicle Speed Control (1)

Reports with a crash: 1 · fire: 0 · injuries: 1

Often appears together with

P0299 Powertrain The turbo or supercharger isn't building the boost pressure the engine computer is asking for. Moderate P0012 Powertrain The bank 1 intake cam lags behind the angle the PCM wants, often from chain stretch or weak oil… Moderate

Possible causes

  1. Wastegate flap or linkage seized with rust or carbon so it can't open (gasoline)22%
  2. Variable-geometry vanes stuck in the closed, high-boost position (diesel)20%
  3. Boost control solenoid stuck, or its hoses cracked, blocked or swapped so the actuator gets the wrong signal18%
  4. Wastegate actuator diaphragm ruptured, rod disconnected or misadjusted12%

P0234: Diagnosis step by step →

Related codes

FordFuel & Air MeteringCheck engine light onLimp modeLoss of power

Source: NHTSA Complaints API (US government open data), analyzed by DTC mention.