Slow to rev

[BJ74 Lurker Find all posts View Profile Close BJ74]

I have a 05 120 with KZ-TE DIESEL. The engine is slow to rev first thing after starting and seems under power on take off but after a 100 meters or so, it accelerates fine. Also when I take my foot off the trottle pedel when changing up gear the engine revs hold for a few seconds before falling back. Any ideas?
Thanks in advance.

[carco Advanced Member Find all posts View Profile Close carco]

Seems a common complaint, but as posted, they come good after a few minutes.
As mine's an auto, I can floor it and watch the boost gauge, nothing happening. After a very short time, she's away and running fine.
Might pay to clean the intercooler and particularly the little filter on the pipe to the MAP sensor as it gets very oily over time.
Some filters get so bad the car won't develop any power at all.

[BJ74 Lurker Find all posts View Profile Close BJ74]

Thanks Carco. I have cleaned intercooler and sensors and also trottle body and put blanking plate at ERG valve.
Seems to be small improvement in power.