I have a Golf Plus 2.0l Tdi which started going into limp mode occasionally about a year ago but would reset if switched off. The problem slowly got worse until into permanently displayed the engine light so I took it in to be fixed.
The garage diagnosed the fault as
16618 PO234 000
Charge Air Pressure Sensor G31
Control limit exceeded
Sporadic
According to the manual the first thing to do is to check all earths on the wiring and clean. They did this, the light no longer came on, cost £80. They suggested I try the car and if it wasn't fixed then the next step is to change the wiring loom...cost £400!
The car still has the fault. It is OK if a stick below 3000rpm but on the motorway if I go above 80mph it will usually go into limp mode again although sometimes it won't.
I can't see how this is a wiring loom fault.
The other thing I have noticed is that the torbo whistles a lot under acceleration...could this be an air leak?
Any suggestions?
The garage say they will do another diagnostic but it will cost another £40, surely if they have not fixed the fault then it should be free?
John
The garage diagnosed the fault as
16618 PO234 000
Charge Air Pressure Sensor G31
Control limit exceeded
Sporadic
According to the manual the first thing to do is to check all earths on the wiring and clean. They did this, the light no longer came on, cost £80. They suggested I try the car and if it wasn't fixed then the next step is to change the wiring loom...cost £400!
The car still has the fault. It is OK if a stick below 3000rpm but on the motorway if I go above 80mph it will usually go into limp mode again although sometimes it won't.
I can't see how this is a wiring loom fault.
The other thing I have noticed is that the torbo whistles a lot under acceleration...could this be an air leak?
Any suggestions?
The garage say they will do another diagnostic but it will cost another £40, surely if they have not fixed the fault then it should be free?
John