Chrispndry
Member
What are the symptoms should a waste gate stick open???? P38 2.5 diesel
Datatek
Well-Known Member
No increase in manifold pressure under acceleration on diagnostics live data.
Chrispndry
Member
Ok I have been told the waste gate may be stuck on my p38.. this is what' is happening......vehicle runs great accelerates fine get up to speed ok can run fine for miles but sometimes on decelarating it loses power for 5 to 10 seconds the engine management light comes on....lift foot off accelerator and then accelerate light goes out...vehicle picks up
Sounds more like the FIP is tired or the chains are stretched so far the modulation goes out of range. Need diagnostics but you might get away with tapping the FIP ever so slightly towards the engine but that just puts off the inevitable. Better to do static timing, check the lift pump is pumping as well as it should and then see what is happening on diag.
Chrispndry
Member
Ok thanks...
Datatek
Well-Known Member
As above, certainly not the turbo waste gate. Could be FIP, leak off pipes, throttle pot, lift pump etc. Needs diagnostics because if the MIL light comes on there will be a fault recorded.
This sounds familiar 
mind you mine hasn't raised its again??! 
mind you mine hasn't raised its again??! 
