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Vauxhall signum 1.9 diesel 2006. High revs on start up and no throttle response

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  • 1,171 Answers

You have a draw leak in your fuel line causing it to do just what you've explained. Between the tank and fuel/injector pump and filter, it's sucking in air and pushing the air into the cylinders with the fuel cause a rich, very rich condition and that's why it is revving very high. Find and fix the line leak, start it up and stay at the switch in case of over-rev, until it calms down after getting all the air out of the system. I've been thru this a few times friend and it's a real pain not knowing the problem. Now YOU know.

Posted on May 12, 2017

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Posted on Jan 02, 2017

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