Hi folks, hoping the freel2 h hive mind can shed some light on this. I am
Experiencing a 2-3 seconds interval of low rpm (500/600? rpm) when starting the engine. MY2008 2.2

I. It recovers to normal 800+ rpm after that short interval
II. It happens every few weeks (started about two years ago)
III. I have changed crankshaft sensor with OEM one - no change
IV. Car has had new idler pulleys and recon alternator in the last 6 months, and also new glow plugs - still happens
V. New battery - it was overdue, but I wasn’t counting on it changing anything

Could it be throttle body, a vacuum leak or injector related?

Thank you all!

You don't mention how many miles it's done but I would put my money on Throttle body? 2013 FL2 XS.
Defender 90 300 TDi.
Defender 90 300 TDi CSW.
1964 MGB Roadster.
1944 Willys MB "Jeep" with bullet holes. (gone)
17 hand Irish Drought Thoroughbred (mostly lame)
Nagging Old Boiler.

Mahatma Gandhi said if there is an Idiot in power those who elected him are well represented. The Enemy is our own corrupt Government.

Car has done 150k miles. I have a spare throttle body with no stripped gears (opened cover and checked) - will install that .

Thanks for the suggestion !

You might need to reset the throttle parameters by software, it cured my slight hesitation by resetting the idle using electronics.

Will try SDD to sort that out . Thank you