2005 Volvo S40 surges then loses power

2005 VOLVO S40
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GAILT
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Engine Performance problem
2005 Volvo S40 Manual

it feels as though i am running out of petrol and the motor practically cuts out then surges forward again. its happening more and more regularly now. i would appreciate any help as this is dangerous. it had a full service 6000km ago. the fuel filter has being replaced. thank you.
Jul 1, 2010 at 3:24 AM
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JIS001
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Is this a Turbo or none turbo engine? Also has the check engine light come on? Can you get it scanned for trouble codes and post them on here?
Jul 2, 2010 at 3:17 AM
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GAILT
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yes, its a t5. the scan showed interm fault on fuel pressure sensor. volvo suggest they replace the sensor but as it costs a lot i wanted a 2nd opinion from you guys first. regards. gail
Jul 2, 2010 at 7:44 AM
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JIS001
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If fuel pressure is ok fuel pump duty cycle is within specs, then yes those fuel pressure sensors have failed from time to time.
Jul 3, 2010 at 5:42 PM