2004 Vauxhall Vectra fault code po234 vauxhall vectra

2004 VAUXHALL VECTRA
122,000 MILES • 4 CYL • FWD • MANUAL
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JOHNYTAFF
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my car was recently diagnosed with fault code po234 turbo overboost condition i have been told to replace turbo solonoid valve . i have tested all the pipes and they are fine no cracks in any of them the car goes into safe mode wont rev over 2500 rpm has any 1 had a similar problem and was it cured with the turbo solonoid valve others have told me it could be the maff sensor i dont wont to replace parts that i dont need replacing. the turbo itself is new and has already cost me a fortune
May 5, 2010 at 4:57 PM
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MHPAUTOS
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Hi there,

This valve operates what is call the waste gate, the turbo will produce more boost than is required, so at a pre determined pressure the waste gate opens and dumps excess boost pressure into the exhaust, if this is not working you may do some serious damage to the engine, i would have this check asap.

MARK (MHPAUTOS)
May 5, 2010 at 6:51 PM