Starting fault - fluctuating revs

By · July 3, 2010 · 0 comments

When I start my M42 powered 1994 E36 318is the revs jump up to about 1500 then drop down to almost stalling speeds, then go up and down a few more times, then stabilise at normal idle speed, about 800rpm.

I have recorded a video (no audio) of a typical start.

This happens whether the engine is cold or hot and once running there are no idle or running problems whatsoever.

The problem is somewhat intermittent. It happens most of the time but not always.
My 1994 318is

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About me
John Avis I am a bit of a 3 series fanatic, having owned a couple of E30s and a few E36s, plus a few parts cars. I like the combination of the compact size, good performance and handling, and that they are more sports sedan than an impractical and extrovert sports car. This blog is a place to share my experience and knowledge.

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