Quote:
Originally Posted by hondatech
The turbochargers used on all honda diesel engines DO NOT UTILISE A WASTEGATE they all use varible vane geometry to control boost pressure,the fault on your car is due to incorrect clearence between the turbine vanes & its casing which get clogged up with sooty deposits & stops it working correctly, once the ecu detects a fault in boost pressure it puts the car into limp home mode until the fault is repaired.  |
Correct! Any decent Honda dealer should be aware of the problem of the clogging vanes. The stator vanes should be able to move freely, but after a while en when not using the turbo enough they can get (partially)blocked. There was an update to the control software, which made the stator vanes move back and forth when the turbo was not boosting (eg. on idle). This "keep on moving" should avoid the vanes to block again.
I'm not saying that this is the problem, but it's a known issue.
K.