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Author Topic: REV PROBLEM  (Read 1261 times)

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MikeDundee

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REV PROBLEM
« on: 26 November 2007, 17:21:10 »
Engine revs keep sticking at 1500 rpm, Broocie did suggest cleaning a doo daa thingy on the engine next to the plenum, but i don't have one on my engine :-/, any suggestions?
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Marks DTM Calib

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Re: REV PROBLEM
« Reply #1 on: 26 November 2007, 17:25:32 »
Clean and lube the throttles......as its drive by wire.

You need to open the throttles to make sure the edges of the discs are clean and the contact points are also clean.

I assume this is at idle?
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Kevin Wood

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Re: REV PROBLEM
« Reply #2 on: 26 November 2007, 17:26:09 »
Any trouble codes reported?

I would say it's an air leak somewhere. You've got no idle valve to leak and if it was a sticking throttle body the drive by wire system would probably detect it go into limp-home. Does it drive OK apart from this?

Kevin
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MikeDundee

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Re: REV PROBLEM
« Reply #3 on: 26 November 2007, 17:40:52 »
Quote
Clean and lube the throttles......as its drive by wire.

You need to open the throttles to make sure the edges of the discs are clean and the contact points are also clean.

I assume this is at idle?

Yes it is when at idle, stopping, waiting at junctions etc., etc., :(
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MikeDundee

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Re: REV PROBLEM
« Reply #4 on: 26 November 2007, 17:41:35 »
Quote
Any trouble codes reported?

I would say it's an air leak somewhere. You've got no idle valve to leak and if it was a sticking throttle body the drive by wire system would probably detect it go into limp-home. Does it drive OK apart from this?

Kevin

Drives OK, and its a manual :y
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MikeDundee

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Re: REV PROBLEM
« Reply #5 on: 26 November 2007, 17:56:36 »
Will I need to take the whole housing off or just remove the vacuum hoses?
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