Date: Fri, 27 Oct 2006 16:43:50 -0400
From: "hippo" <>
Subject: Re: rough acceleration when engine cold

johannes wrote: >ElectricMike wrote: >> >> I have a SAAB 900 SE convertible turbo. car acts as if it is missing on a >> cylinder when pulling away and accelerating. once the engine warms up the >> problem disappears. the car has had a full service so the normal causes have >> been eliminated. >> it has been suggest that the ECU might be at fault, but why when only cold? >Then the service hasn't been effective. Renew spark plugs? >Which year? Does it have DI cassette? Agree. I'd be suspecting plugs first or else a plug lead that's reached its use by date. What year? Might help to narrow it down (e.g: on an old K-jet engine I'd be testing mechanical injectors next, but that's obviously not going to be the prob here). Cheers

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