Nissan Repair: nissan Patrol engine warning light, vacuum valve, nissan patrol

Question
Thankyou for the opportunity of getting some help. I have a 2001 Nissan Patrol 3 litre turbo diesel GU2. The engine warning light comes on under load with high revs. When I turn the motor off it resets. I have changed all the filters ie. air and fuel but to no avail. I would appreciate some other ideas. Thanks for your help.
sincerely
Rob

Answer
Robert,

Sounds like the fuel pressure.  Check to see if the fuel pressure is within normal range.  Also, check to see if the turbo vacuum valve is working properly when you accelerte and let off the foot feed.  Those are the two most common problems on the turbo diesel.