Mazda MX-5 cabriolet coupe - Mazda MX-5 rev surge

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Wed 6 Oct 2010 15:32
Mazda MX-5 cabriolet coupe - Mazda MX-5 rev surge - lindsay

After two years niggle free motoring, my MX-5 has started to over-rev when started from cold. the revs surge to 2500 rpm before slowly settling down to its normal idle [8-900 rpm] as the car warms up. The problem doesn't occur when the car is started when warm. The supplying dealer claims this surge is 'normal' but I don't see how this can be so since it didn't happen in the first two years of the car's life.

Any ideas anyone?

Thanks

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Sun 10 Oct 2010 20:24
Mazda MX-5 cabriolet coupe - Mazda MX-5 rev surge - mark999

Hi, would be usefull to know what engine and the year. If its an older model you could possibly try setting the base idle when warm. I found loads of useful info at www.miata.net and www.mx5ocforum.co.uk

Mark

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