Rough Idle. Dies when pressing gas pefal

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Fiddle123
Joined: Sat 25 Dec, 2021 19:57
Posts: 1

  Z3 roadster 2.0

Rough Idle. Dies when pressing gas pefal

Post by Fiddle123 »

Hi I have a bmw z3 1999 6 cylinder.
Suspect vacuum leak but can anybody suggest anything else
if not.
Car idles really badly and dies if I press the gas pedal
Thanks Rich
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motco
Joined: Tue 18 Aug, 2009 18:12
Posts: 724

  Z3 roadster 2.2i

Re: Rough Idle. Dies when pressing gas pefal

Post by motco »

I had similar symptoms on my 2.2i but the cause can only be the same as mine if yours has a fly-by-wire throttle. The throttle body was sticking which meant that the only engine speed possible was that allowed by the idle control valve. If I remember rightly I also had a couple of warning lights:- DSC and engine light. A used replacement throttle body cured mine. Good Luck!
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