What cause a hiace 1kz diesel turbo engine to over heat

Question edited for clarity.
Question moved to Toyota.

See the link. also click on the images tab

https://www.google.com/search?q=toyota+1kz+diesel+turbo+firing+order

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not sure of what you mean
glow plugs are there to assist the instant start of the diesel engine
it will wind over well without the plugs operating but takes longer to heat the compressed air in the cylinders to fire the diesel being sprayed in
if it starts and is still sluggish to respond to the accelerator , that is a different problem to the glow plugs
I'm thinking low fuel pressure if common rail diesel and bad injectors squirting and not atomizing
have a proper diagnosis done by an accredited professional diesel repair shop

yes.

get a tuneup.
or scan it for loose of closed loop operation, (USA CARS)
at idle
at flat ground cruise, right foot steady.
if CLose loop fails we fix that first. ask.

get older scanner to read code,tune up,fuel filter,

We do no thave this engine in the US so have no info on it.

Am having the same problem, has there been any resolution?

if both engines are in good condition, with the same driver, I would say that the diesel would have better mileage especially for highway travel. You may maximize this further if you utilize the turbo, meaning relying more on the turbo rather pressing the throttle.

Sounds like you have the classic cracked cylinder head the 1KZ TE motors are renowned for

hi there, i had exactly the same problem with mine. all i did was to turn up the diesel pump a little. cheers d