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Mk1 Eunos randomly revving itself

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ProjectEunos46
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Mk1 Eunos randomly revving itself

Postby ProjectEunos46 » Fri Dec 15, 2023 3:53 pm

It’ll be idling and just randomly start revving, I think to around 2500rpm. Doesn’t hold it for long, almost instantly goes back to idling normal 9 times out of 10, but had a few times where it’s held it there for a good few seconds.

Any ideas?

Thanks
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blackyb
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Re: Mk1 Eunos randomly revving itself

Postby blackyb » Fri Dec 15, 2023 3:56 pm

The first question is any engine mods..
1993 1.6 Eunos Roadster (gone)
1998 UK Mk 2 1.6 (gone)
2003 1.8 SVT Sport (shouldnt have sold it)
1991 1.6 Eunos Roadster with a bit of bling.

Life is a journey, best travelled topless in an MX5!!
ProjectEunos46
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Re: Mk1 Eunos randomly revving itself

Postby ProjectEunos46 » Sat Dec 16, 2023 6:22 am

No mods but aftermarket pipes, it’s got the stoney racing kit on there
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Mazda Mender
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Re: Mk1 Eunos randomly revving itself

Postby Mazda Mender » Sat Dec 16, 2023 12:45 pm

Idle control valve.
M-m
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Mk 1 Eunos 93 black V.S II 1.8 ,
Mk 2 .1/4 Roadster 99 black & gold V.S 1.8 .
Mk 1 Eunos 90 1.6 soul red ..f/ build
MK 2.1/4 Blue V.S Roadster 1.8 99 ..
MK1 1.8 ,white import.. (Ashleighs)
MK1 1.6 yellow J ltd import.f/build
MK 1 1.8 black Tokyo Ltd..f/build


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ProjectEunos46
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Re: Mk1 Eunos randomly revving itself

Postby ProjectEunos46 » Sun Dec 17, 2023 9:51 am

Thanks I’ll have a look into it, still learning and needing lots of help so happy to have found this forum :)

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