P0234

Engine Turbocharger/Supercharger Overboost Condition

DTC P0234, sometimes indicated as P023400 is an OBD diagnostic trouble code indicating a generic fault with the vehicle powertrain (i.e. engine and gearbox). This code identifies an error with the air/fuel mixture causing engine turbocharger/supercharger overboost condition.

This code is set when the PCM detects that the engine has been in an overboost condition for too long. This can be caused by a number of things, including a faulty turbocharger or supercharger, a blocked air intake, or a faulty boost sensor.
If this code is detected, it is recommended that you have the vehicle inspected by a qualified technician to determine the cause.

  • P0234: Engine Turbocharger/Supercharger Overboost Condition
  • P0234: Turbocharger/Supercharger "A" Overboost Condition
  • P0234: Engine Overboost Condition
  • P0234: Turbocharger (TC), engine boost condition – limit exceeded
  • P0234: Supercharger (SC), engine boost condition – limit exceeded
  • P0234 00: Overfade / Overfaded / Motor condition
  • P0234 00: Turbocharger (TC), engine boost condition - limit exceeded
  • P0234 00: Supercharger (SC), engine boost condition - limit exceeded

See Also: Related Error Codes
DTC Trouble Code Search
Bulletins

Bulletins are notices put out by manufacturers in conjunction with the NHTSA to notify the public of manufacturing issues or changes.

  • 22-NA-007 - ENGINE AND ENGINE COOLING
    CHEVROLET: This service bulletin provides procedures to correct customer concerns of poor engine performance in extremely cold weather conditions, charge air cooler (cac) icing - malfunction indicator lamp (mil) illuminated with dtcs P0299, P0234, p02
  • 21-NA-293 - ENGINE AND ENGINE COOLING
    CHEVROLET: This technical bulletin provides repair information to correct a customer concern of poor engine performance in extremely cold weather conditions, charge air cooler icing - malfunction indicator lamp (mil) illuminated, dtc P0299, P0234, p02
  • TT200906 - ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
    VOLKSWAGEN: Use the diagram below to test the n75 solenoid valve in the event of a turbocharger fault code such as P0299 or P0234. This applies to mechanical injection style diesel engines, pumpe duse style diesel engines and the new common rail style
  • 22-NA-007 - ENGINE AND ENGINE COOLING
    CHEVROLET: This service bulletin provides procedures to correct customer concerns of poor engine performance in extremely cold weather conditions, charge air cooler (cac) icing - malfunction indicator lamp (mil) illuminated with dtcs P0299, P0234, p02
  • PIP5892B - ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
    CHEVROLET: This preliminary information communication provides information to the dealer technician related to a malfunction indicator lamp coming on post turbocharger replacement with P0234 (engine overboost) set current or in history. It advises the
  • PIP5812C - ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
    CHEVROLET: This preliminary information communicates the possibility of dtc P0299 P0234 setting due to oil/moisture cndensate freezing in turbocharger wastegate regulator solenoid valve (tcv) during cold weather driving
  • PIP5892A - ENGINE AND ENGINE COOLING
    CHEVROLET: This preliminary information communication provides information to the dealer technician related to a malfunction indicator lamp coming on post turbocharger replacement with P0234 (engine overboost) set current or in history. It advises the
  • PIP5892 - ENGINE AND ENGINE COOLING
    CHEVROLET: This preliminary information communication provides information to the dealer technician related to a malfunction indicator lamp coming on post turbocharger replacement with P0234 (engine overboost) set current or in history. It advises the
  • 01133020270825 - ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
    AUDI: Dtc P0234 (turbo/super charger overboost condition) is stored in the engine control module, j623 (address word 01). No other dtcs are stored. Technical background dtc P0234 can be set inadvertently by the software application.
  • 01133020270825 - ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
    AUDI: Dtc P0234 (turbo/super charger overboost condition) is stored in the engine control module, j623 (address word 01). No other dtcs are stored. Technical background dtc P0234 can be set inadvertently by the software application.
  • 22-NA-007 - ENGINE AND ENGINE COOLING
    CHEVROLET: This service bulletin provides procedures to correct customer concerns of poor engine performance in extremely cold weather conditions, charge air cooler (cac) icing - malfunction indicator lamp (mil) illuminated with dtcs P0299, P0234, p02
  • 9003758 - ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE)
    RAM: Egr cooler if a customer comes in with a check engine light for P0401, P2281 or P0234 and the,technician has determined the egr cooler is plugged with soot, please contact stephen alvarado at the star center at (866) 799-1695 ext. (4720271
  • 01133020270825 - ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
    AUDI: Dtc P0234 (turbo/super charger overboost condition) is stored in the engine control module, j623 (address word 01). No other dtcs are stored. Technical background dtc P0234 can be set inadvertently by the software application.
  • 21NA293 - ENGINE AND ENGINE COOLING
    CHEVROLET: This technical bulletin provides repair information to correct a customer concern of poor engine performance in extremely cold weather conditions, charge air cooler icing - malfunction indicator lamp (mil) illuminated, dtc P0299, P0234, p02
  • 22-NA-007 - ENGINE AND ENGINE COOLING:ENGINE:SOLENOID/ACTUATOR
    CHEVROLET: This service bulletin provides procedures to correct customer concerns of poor engine performance in extremely cold weather conditions, charge air cooler (cac) icing - malfunction indicator lamp (mil) illuminated with dtcs P0299, P0234, p02
  • 22NA007 - ENGINE AND ENGINE COOLING
    CHEVROLET: This service bulletin provides procedures to correct customer concerns of poor engine performance in extremely cold weather conditions, charge air cooler (cac) icing - malfunction indicator lamp (mil) illuminated with dtcs P0299, P0234, p02
  • 22-NA-007 - ELECTRICAL SYSTEM
    CHEVROLET: This service bulletin provides procedures to correct customer concerns of poor engine performance in extremely cold weather conditions, charge air cooler (cac) icing - malfunction indicator lamp (mil) illuminated with dtcs P0299, P0234, p02
  • LI09.00-P-074093 - ENGINE AND ENGINE COOLING
    MERCEDES-MAYBACH: "my15+ m278 and m157 equipped vehicles with fault code ""P023400 a?? Boost pressure is too high"" "
  • TSB150162 - ELECTRICAL SYSTEM
    FORD: 1.6l gtdi - lack of power with mil illuminated - dtcs P0234, P0245, P0246 and/or P0299. Some 2013-2016 escape 2014-2016 fiesta st, and 2013-2014 fusion vehicles equipped with a 1.6l gasoline turbocharged direct injection (gtdi) engine may e
  • TSB150160 - ELECTRICAL SYSTEM
    FORD: Some 2015-2016 f-super duty pickkup vehicles equipped with 6.7l engine and built on or before 9/9/2015 may exhibit mil on with dtcs P259F, P0234 and/or P0236 stored in powertrain control module (pcm) memory. 3.7l dur actec - illuminated mil
  • PIP5812C - ENGINE (PWS)
    CHEVROLET: This preliminary information communicates the possibility of dtc P0299 P0234 setting due to oil/moisture cndensate freezing inturbocharger wastegate regulator solenoid valve (tcv) during cold weather driving
  • PIP5812B - ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
    CHEVROLET: This preliminary information communicates the possibility of dtc P0299 P0234 setting due to oil/moisture cndensate freezing inturbocharger wastegate regulator solenoid valve (tcv) during cold weather driving
  • PIP5812 - ENGINE (PWS)
    CHEVROLET: This preliminary information communicates the possibility of dtc P0299 P0234 setting due to oil/moisture cndensate freezing inturbocharger wastegate regulator solenoid valve (tcv) during cold weather driving
  • PIP5812A - POWER TRAIN:AUTOMATIC TRANSMISSION:FLUID/LUBRICANT:VALVES/VALVE BODY
    CHEVROLET: This preliminary information communicates the possibility of dtc P0299 P0234 setting due to oil/moisture cndensate freezing inturbocharger wastegate regulator solenoid valve (tcv) during cold weather driving
  • PIP5495N - EXTERIOR LIGHTING
    CHEVROLET: This preliminary information communication provides information to the technician about vehicles that may have a malfunction indicator lamp on. The technician may find diagnostic trouble codes P0299 or P0234 set. The technician is provided
  • PIP5495M - EXTERIOR LIGHTING
    CHEVROLET: This preliminary information communication provides information to the technician about vehicles that may have a malfunction indicator lamp on. The technician may find diagnostic trouble codes P0299 or P0234 set. The technician is provided
  • PIP5495M - ENGINE (PWS)
    CHEVROLET: This preliminary information communication provides information to the technician about vehicles that may have a malfunction indicator lamp on. The technician may find diagnostic trouble codes P0299 or P0234 set. The technician is provided
  • PIP5495L - EQUIPMENT ADAPTIVE/MOBILITY
    CHEVROLET: This preliminary information communication provides information to the technician about vehicles that may have a malfunction indicator lamp on. The technician may find diagnostic trouble codes P0299 or P0234 set. The technician is provided
  • LTB01204NAS3 - POWER TRAIN
    LAND ROVER: The mil is illuminated on the ipc with diagnostic trouble code(s) (dtc) P0234-77 stored in the powertrain control module (pcm) which may be accompanied with dtcs P2463-00 and P246B-00.
  • Tech_RS_NOV19_79 - ENGINE AND ENGINE COOLING
    LAND ROVER: Tdv6 16-18mymy3.0l tdv6 equipped vehicles have a mil and ⿿restricted performance⿝ on the instrument cluster and P0234-77 stored in the pcm
  • PIP5495K - ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER
    CHEVROLET: This preliminary information communication provides information to the technician about vehicles that may have a malfunction indicator lamp on. The technician may find diagnostic trouble codes P0299 or P0234 set. The technician is provided
  • PIP5495J - ENGINE (PWS)
    CHEVROLET: This preliminary information communication provides information to the technician about vehicles that may have a malfunction indicator lamp on. The technician may find diagnostic trouble codes P0299 or P0234 set. The technician is provided
  • TSB 19-2019 - EQUIPMENT:APPLIANCE:AIR CONDITIONER
    FORD: Some 2018-2019 f-150 vehicles equipped with a 3.0l diesel engine built on or before 25-jan-2019 may exhibit an illuminated mil with diagnostic trouble codes (dtcs) P0234, P208E and/or P2201 stored in the powertrain control module (pcm). Fol
  • TSB 19-2018 - ELECTRICAL SYSTEM
    FORD: Some 2018-2019 f-150 vehicles equipped with a 3.0l diesel engine built on or before 25-jan-2019 may exhibit an illuminated mil with diagnostic trouble codes (dtcs) P0234, P208E and/or P2201 stored in the powertrain control module (pcm). Fol
  • TSB 19-2019 - EQUIPMENT:APPLIANCE:AIR CONDITIONER
    FORD: Some 2018-2019 f-150 vehicles equipped with a 3.0l diesel engine built on or before 25-jan-2019 may exhibit an illuminated mil with diagnostic trouble codes (dtcs) P0234, P208E and/or P2201 stored in the powertrain control module (pcm). Fol
  • TSB 19-2018 - POWER TRAIN
    FORD: Some 2018-2019 f-150 vehicles equipped with a 3.0l diesel engine built on or before 25-jan-2019 may exhibit an illuminated mil with diagnostic trouble codes (dtcs) P0234, P208E and/or P2201 stored in the powertrain control module (pcm). Fol
  • LTB01204NAS2 - POWER TRAIN
    LAND ROVER: The engine mil (malfunction indicator lamp) may be illuminated on the instrument panel cluster with dtc (diagnostic trouble code) P0234-77 stored in the powertrain control module (pcm). Dtc P2463-00 and P246B-00 may also be stored.
  • PIP5495H - ENGINE (PWS)
    CHEVROLET: This preliminary information communication provides information to the technician about vehicles that may have a malfunction indicator lamp on. The technician may find diagnostic trouble codes P0299 or P0234 set. The technician is provided
  • PIP5495G - ENGINE AND ENGINE COOLING
    CHEVROLET: This preliminary information communication provides information to the technician about vehicles that may have a malfunction indicator lamp on. The technician may find diagnostic trouble codes P0299 or P0234 set. The technician is provided
  • LTB01204NAS1 - ELECTRICAL SYSTEM
    LAND ROVER: The engine malfunction indicator lamp (mil) may be illuminated on the instrument cluster with diagnostic trouble code (dtc) P0234-77 stored in the powertrain control module (pcm). Dtcs P2463-00 and P246B-00 may also be stored.
  • LTB01204NAS1 - ENGINE (PWS)
    LAND ROVER: The engine malfunction indicator lamp (mil) may be illuminated on the instrument cluster with diagnostic trouble code (dtc) P0234-77 stored in the powertrain control module (pcm). Dtcs P2463-00 and P246B-00 may also be stored.
  • PIP5495E - ENGINE AND ENGINE COOLING
    CHEVROLET: This preliminary information communication provides information to the technician about vehicles that may have a malfunction indicator lamp on. The technician may find diagnostic trouble codes P0299 or P0234 set. The technician is provided
  • A011858 2050679_ - ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
    AUDI: This bulletin contains repair information for when the epc light is on and there is poor performance with dtc(s) P029900 and/or P023400.
  • L-SB-0092-16 - POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM, PCM)
    LEXUS: Tsb: some 2015 ? 2016 model year nx 200t vehicles equipped with 8ar-fts engines may exhibit a mil ?On? Condition diagnostic trouble code (dtc) P023400 (turbocharger/supercharger ?A? Overboost condition). The engine control module/ecm (sae
  • PIP5495D - EXTERIOR LIGHTING
    CHEVROLET: This preliminary information communication provides information to the technician about vehicles that may have a malfunction indicator lamp on. The technician may find diagnostic trouble codes P0299 or P0234 set. The technician is provided
  • TT 20-09-06 - ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
    VOLKSWAGEN: Tech tips (tdi engine - n75 solenoid valve diagnosis): this document informs with graphical aid the testing of the n75 solenoid valve in the event of a turbocharger fault code such as P0299 or P0234. This applies to mechanical injection st
  • PIP5495C - EQUIPMENT:ELECTRICAL
    CHEVROLET: This preliminary information communication provides information to the technician about vehicles that may have a malfunction indicator lamp on. The technician may find diagnostic trouble codes P0299 or P0234 set. The technician is provided
  • A011330 2027082- - ENGINE (PWS)
    AUDI: Supersedes technical service bulletin group 24 number 12-28 dated april 24, 2012. Mil on. Dtc P0234 (turbo/super charger overboost condition) is stored in the engine control module, j623 (address word 01). No other dtcs are stored. Dtc p023
  • PIP5495B - EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
    CHEVROLET: This preliminary information communication provides information to the technician about vehicles that may have a malfunction indicator lamp on. The technician may find diagnostic trouble codes P0299 or P0234 set. The technician is provided
  • PIP5495A - EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
    CHEVROLET: This preliminary information communication provides information to the technician about vehicles that may have a malfunction indicator lamp on. The technician may find diagnostic trouble codes P0299 or P0234 set. The technician is provided
  • TSB 16-0116 - ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
    LINCOLN: Some 2017 escape and mkc vehicles equipped with a 2.0l gasoline turbocharged direct injection (gtdi) engine built on or before 20-aug-2016 may exhibit a lack of power drivability concern with an illuminated mil and dtc P0234 stored in power
  • PI0849 - ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
    BUICK: This preliminary informational bulletin provides a procedure to reprogram the engine control module for conditions of lack of power, no turbo boost, and/or dtc P0234.
  • 15-077 - ENGINE (PWS)
    FORD: Ford f-super duty 2015: bulletin information involving vehicles equipped with a 6.7l diesel engine may detect a mil illuminated with dtcs stored in the powertrain control module memory, codes P259F,P0234, or P0236. *lj
  • TT-21-10-01 - ENGINE AND ENGINE COOLING:ENGINE:GASOLINE
    VOLKSWAGEN: Volkswagen: diagnosis n75 solenoid valve on turbocharger, with fault codes P0299 and P0234, that leads to testing on which vacuum ports that would hold and which ones will not. No models were listed. Model years 2006-2013 with 2.0t gaso
  • PI-0849 - ENGINE (PWS)
    BUICK: Buick: engine control module should be reprogrammed to correct lack of turbo boost and lack of power after checking dtc P0234. Model 2012 regal gs. *pe
  • PIP-4825 - ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
    CADILLAC: Cadillac: dtc P0101 P0234 low power lau 2.8l turbocharged. Remove and inspect the waste gate pressure hose. The air cleaner outlet tube clamp may have rubbed a small hole in the line. This is a sort hose that runs from the solenoid to t
  • PIP-4636 - ENGINE AND ENGINE COOLING:ENGINE:DIESEL
    CHEVROLET: Chevrolet/gmc: turbo vane position sensor wire chafe; reduced power and/or the ses/mil light on. Initial diagnosis may reveal one or a combination of turbo dtcs P003A, P0234, P0401, P0402, P0652, P0698, P0699, P2563. If one or combination
  • 18-014-08 - POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM, PCM)
    DODGE: Flash: mil illumination with dtc P0234 and/or P0128. Equipped with a 2.4l turbo engine built prior to march 4, 2008. *nj
  • 040604073 - ENGINE AND ENGINE COOLING:ENGINE
    CHEVROLET: Low engine power, diagnostic trouble code (dtc) P0234 set (reprogram ecm). *tt
  • 1100202 - ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
    CHRYSLER: Engine hesitation, loss of boost, screeching sound from turbo, diagnostic trouble code (dtc) P0234. *tt
Consumer Complaints for this DTC


2020 HYUNDAI ELANTRA GT with 10000.0 miles

Accelerating the vehicle to get to highway speeds, vehicle pulls hard and bogs down into limp mode, resulting in a P0234 mil. Vehicle is at the dealership but haven't heard from them about it.
ENGINE, ENGINE


2017 FORD FUSION with 31225.0 miles

Owner went to pass another vehicle at speed and used the cars "sport mode". When owner enabled sport mode car sputtered and lost majority of power and displayed a "see manual" light. Owner drove car to jordan Ford of san antonio where the presented him with code P0234 for turbocharger overboosting. Dealership reset cars computer and did nothing else.
ENGINE,


2015 RAM 5500 with 180000 miles

The dpf filter is saying that its clogged and it won't regin. Codes: P0234, P24A2,P0420,P0087,P2228,P1193,P243F,P0102,P203F,P2280
UNKNOWN OR OTHER, ENGINE ELECTRICAL SYSTEM UNKNOWN OR OTHER ENGINE ELECTRICAL SYSTEM


2014 FORD ESCAPE with 104.0 miles

2 months ago, my car died in as i was exiting the interstate. Transmission issues - repaired after 2 months. Drove it out of town and second day being out of town engine light on. Brought it back to mechanic and transmission mechanic said there was no trans code present, but following codes present P1116 and P0234. Unable to drive car again until light engine light is off and this repair is out of pocket again.
UNKNOWN OR OTHER, ENGINE


2013 FORD ESCAPE with 80000.0 miles

Engine keeps stalling after driving for awhile took it to Ford garage a few months ago they said they couldn't find anything. I knew something was wrong i have already replaced the transmission and based on results of new diagnostic test done by a friend and not Ford garage 2103 Ford Escape P0234 i may eventually be replacing another. This is very annoying because the Ford garage can't find the problem.
ENGINE,


2013 FORD ESCAPE with 152000. miles

I have had my Escape for about 1yr. And for the past 6 months i have been getting a code P0234 which was read at a local auto zone which reads wastegate solenoid this is happening to me and many many other people around the world the solenoid itself keeps going bad and causing issues such as acceleration problems, losing power and dying down while driving even on an interstate and highways and sometimes it'll do it 2 or 3 times in a row before finally running and getting me where i need to go such as work or my child's school or doctor appointments or to the store. This issue should've been resolved by Ford making it so the wastegate can keep up with the turbocharge in the Ford Escape 1.6l. Other people used their power train warranties to have it fixed just to have to pay out of pocket for another one. It is a very serious ongoing issue with not just my car but others and the part is $200 each time it needs replaced and it is literally never the hoses it's the solenoid giving too much boost over 4psi which is absolutely ridiculous these cars need recalled the wastegate isn't compatible to keep up with the turbocharge itself in the car and if not fixed then people have to replace the turbo itself or buy a new engine or replace head gaskets and it could cause a serious wreck if someone is driving going 70mph on a highway and then boom your car died all because of a solenoid that doesn't work for the 2013 Ford Escape because Ford doesn't want to deal with the fact these cars are not road material and they are not safe for anyone to drive. They sincerely need recalled and nobody should have to pay for something that should've been dealt with before being sent out to the world. I really hope you consider investigating and getting these cars recalled. It'll save everyone time, effort, and money. I have proof of all the forums i could find too of the same issues i am having.
ENGINE, POWER TRAIN POWER TRAIN ENGINE ENGINE


2013 FORD ESCAPE with 98684.0 miles

P00c6 , P0234 & P26B7 are my problems . My car cranks but won't start
FUEL/PROPULSION SYSTEM, ENGINE ELECTRICAL SYSTEM


2013 CHEVROLET CRUZE

Been hearing ticking noise coming from the engine. Check engine light is on. Code P0234
ENGINE,


2013 FORD ESCAPE with 122000. miles

Takata recall my vehicle had endless issues and problems. I would drive a mile or so to gas station, turn off car, get gas and then the car wouldn't start or drive 15 miles, do a job, 30 minutes later get in and the car wouldn't start. It took several times for the vehicle to turn over and then stay running. I would throw it into gear to get the engine running and sometimes it'd be fine, other times it would bog down and stall. I got into an accident and my car was totaled. I had mechanics look at the issue and they would say the o2 sensor, wastegate solenoid or evap leak. They would nickel and dime me with all these little things. The codes were, P0234,P26B7 and P0456. They said coolant was getting into the fuel system and that was contributing to the stalling and problems. I had to see a chiropractor after my accident due to spinal pain and discomfort. However, it was worth this getting rid of this lemon once and for all. If anyone else is experiencing these problems, post the fix so that it can save someone else from financial, emotional and physical pain. I didn't let anyone drive my vehicle(wife/family) because i never knew when it would stall and where.
FUEL/PROPULSION SYSTEM, ENGINE ELECTRICAL SYSTEM


2011 CHEVROLET CRUZE

"takata recall" my car is shutting off then powering back up by itself.. Seems like something is stuck reading a code of P0234
ELECTRONIC STABILITY CONTROL, ELECTRICAL SYSTEM


2011 FORD F-150 with 26310.0 miles

Fault log code P0234, turbo noise hissing, cutting out. Loss of power. Poor acceleration. Coolant leeks, oil leeks. Returned to corning Ford for more service work. Original service october 11 / 2015. Second service december 28 / 2015 coolant leek, turbo hissing, cutting out hissing when under acceleration. Condition when in motion on city street and highway driving.
ENGINE, POWER TRAIN FUEL/PROPULSION SYSTEM

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