What Causes Excessive Turbo Lag. Due to a leak it takes more time for a turbo to fill up the boost. Mechanic did say something about the EBP Sensor Only reading 4 psi should be around 14ish.
This lag usually comes in diesel cars that have large turbochargers to develop more torque but this peak torque only comes in when the engine revolutions per minute RPM is around 2000 rpm or so. The improvement in air flow during the transient also allows for more EGR flow that would cause excessive amounts of turbo lag in a standard turbocharger which in turn reduces NOx emissions during transient engine operation. This issue usually called the turbo lag is when the turbo spools air and fuel to send into the cylinder.
Factory Car Warranty Expired.
One final consideration it takes time for a DPF to block sometimes years. BTN Turbo say possible reasons why the EGR valve may fail to open include blockages air leaks or a faulty electric switch pressure converter valve. The improvement in air flow during the transient also allows for more EGR flow that would cause excessive amounts of turbo lag in a standard turbocharger which in turn reduces NOx emissions during transient engine operation. As you might figure out it is therefore very different compared to the turbo lag the turbo lag is when you press the accelerator pedal until it starts creating power.
