Revs high when hot

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07-16-2022, 09:13 AM

Jag1066

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Revs high when hot

When the engine is cold after about 10 min driving the idle speed gets higher and higher.. if the car sits in the sun for a few hours then the idle speed is high from the beginning ..anyone know the cure

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07-16-2022, 09:43 AM

JagV8

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Start by looking at fuel trims (there are 4) when it does that.

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07-16-2022, 10:37 AM

GGG

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Quote:

Originally Posted by Jag1066

..anyone know the cure

Welcome to the forums Jag1066,

Anyone know the vehicle!

Please add MODEL and YEAR and I'll move your question to the relevant model forum.

Graham

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07-16-2022, 11:50 AM

Jag1066

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Quote:

Originally Posted by GGG

Welcome to the forums Jag1066,

Anyone know the vehicle!

Please add MODEL and YEAR and I'll move your question to the relevant model forum.

Graham

It’s a jaguar. 300 x sovereign 1997

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GGG (07-16-2022)

07-16-2022, 02:04 PM

GGG

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Quote:

Originally Posted by Jag1066

It’s a jaguar. 300 x sovereign 1997

Thanks for the clarification.

I've moved the thread from General Tech Help to X300 forum and added those vehicle details to your signature.

Graham

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Jag1066 (07-17-2022)