Boost presure sensor replaced, S80 stalls and hesitates

animashaun1 · Post by **animashaun1** » 18 Aug 2012, 19:35

i just replaced boost pressure sensor and turbo control valve on my 1999 Volvo S80,based on recommendation because it stalls and hesitate when accelerated, There is little improvement, I still get hesitation, what can i do, please advice.

Post by **JDS60R** » 18 Aug 2012, 21:37

Have the codes read and report back what they are

animashaun1 · Post by **animashaun1** » 19 Aug 2012, 01:40

no code, code cleared, before replacement it was P0234.Turbo/super charger over boost condition.

Post by **jkdjim** » 20 Aug 2012, 11:53

Have you checked your boost lines? There are the three obvious ones that connect to the TCV, but there are two short pieces about 2 or three inches each. These connect the hard line to each turbo. One is on the passenger side under the car, at least that's how I accessed it. The other is under the motor mount connected to the strut bar. That one was a bitch to replace, but mine was severed. IPD sells blue silicon hose and I bought however long they recommended on their site plus a foot or two.