2004 Fiat Punto - At about 2 and a half thousand revs car shuts down.

Punto 1.2 8v Problem
The Problem
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numbnuts

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At about 2 and a half thousand revs car shuts down.
Apr 17, 2018 (1 year ago)
After a couple of minutes from cold car gets to 2 and a half thousand revs and cuts of till you ease off again.
If you hold the throttle down in neutral it revs up and down on its own at about one second intervals at the top of each rev the engine light comes on and goes off again when it drops.
Had it plugged in and showing no codes previous codes were lambda sensor after cat but had that done.

Car: Fiat Punto
Variant: 1.2 8v
Year: 2004
Category: Electrics, ECU, Warnings & Lights
Recalls: Fiat Punto Recalls
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1/4drive
Fixes: 1,862
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Apr 17, 2018 (1 year ago)
If the light comes on there HAS to be codes.
Check it while it's doing this rather than later.
Also check for induction leaks.
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whittingehame
Fixes: 12,189
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Apr 17, 2018 (1 year ago)
Check engine breather hose for splits .
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