sv6 loses power when turning but doesnt stall

[vr_owner]

been trying to search for an answer for this but i have come up short.

when i turn around a decent sized round about or a corner its like the power of the car is cut in half. this happens on both LPG and petrol.
the dash etc works as normal


Has anyone had this before? any ideas what to check

 

[ant797]

have you checked your fluid level and color maybe its low or realy old and black and your pumps putting to much load on engine im only guessing dont know much about it but easy to check

 

[Trevor loves holden.]

TPS or your accelerator sensor has a dead spot. Low coolant in the reserve tank making it go into limp mode, check all fluids, battery cables earth wires. Also could be a cam sensor.

 

[Fu Manchu]

Is this happening while you turn or after?
Does it go back to normal after the roundabout?

 

[vr_owner]

it happens after i turn, but i think its my diff, i have a bad knock after 30 minutes of driving :S