Petrol engines 2.1 ISCU - Revision history

Hacksawbob at 19:56, 19 December 2011

2011-12-19T19:56:18Z

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			Located behind the offside rear light cluster there is a small black box called the idle stabilisation control unit.

			BTW, there's lots of info on this on thesamba.com. A guy called tencentlife seems to be the guru. (Search on ISV and ISCU within the vanagon/eurovan forum): taken from this wiki entry [[http://wiki.club8090.co.uk/index.php/Petrol_engines_Bad_idling_2.1]]

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Hacksawbob at 19:52, 19 December 2011

2011-12-19T19:52:31Z

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	The idle stabilisation control unit is an analogue circuit that outputs a pulse width modulated signal to the idle control valve. Its function is to maintain a constant idle speed while the engine is warming up and when power steering and air conditioning kicks in. As far as I can ascertain this does not make the unit engine specific and that the variations indicate circuit revisions.		The idle stabilisation control unit is an analogue circuit that outputs a pulse width modulated signal to the idle control valve. Its function is to maintain a constant idle speed while the engine is warming up and when power steering and air conditioning kicks in. As far as I can ascertain this does not make the unit engine specific and that the variations indicate circuit revisions.

Hacksawbob: Created page with 'The idle stabilisation control unit is an analogue circuit that outputs a pulse width modulated signal to the idle control valve. Its function is to maintain a constant idle spee…'

2011-12-19T19:52:04Z

Created page with 'The idle stabilisation control unit is an analogue circuit that outputs a pulse width modulated signal to the idle control valve. Its function is to maintain a constant idle spee…'

New page

The idle stabilisation control unit is an analogue circuit that outputs a pulse width modulated signal to the idle control valve. Its function is to maintain a constant idle speed while the engine is warming up and when power steering and air conditioning kicks in. As far as I can ascertain this does not make the unit engine specific and that the variations indicate circuit revisions.

I recently discovered a dry joint in mine (Rev. A) and got a spare for the road (Rev. C). Both work fine with my DJ engine with only a slight idle speed adjustment required. I investigated the different variations before buying the spare, translated information from a German forum and learnt of someone running a revision D on his DJ without problems.

However, some maintain that A and C is for DJ and B and D for MV but they do not provide a reason for this. Sensors for ISCU on DJ and MV are the same.