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P0234 Diagnostic Trouble Code Discussion for October 2010

Turbocharger Engine Overboost

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Trouble Ticket Help Requests for DTC P0234
Help Request Posted
2005 Jeep Liberty Sport 2.8L MIL Lamp on VIN: 1J4GL48525
P0234: Turbocharger Overboost Condition. Hello all, Quality information seems to be a bit scarce for this vehicle. So far I have graphed PIDs for desired boost, actual boost, desired fuel pressure, actual fuel pressure, and MAF. At times the boost seems lower than the commanded value and other times...
October 21, 2010
2005 Jeep Liberty Limited 2.8L MIL Lamp on, No Power VIN: 1J4GL48525
P0234: Turbocharger Overboost Condition. ... real headache on my hands with this little jeep. Sets a code P0234 Turbo Overboost Condition within a half block of driving after code is cleared. I believe overboost is a true condition because this jeep is a fireball until code sets, then Pcm goes into a...
October 22, 2010