Pop from exhaust.... when turning off
15-04-2012, 06:50 PM
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Pop from exhaust.... when turning off
WTF?
Does this mean I still have loads of fuel going through when the spark goes out?
15-04-2012, 07:44 PM
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15-04-2012, 08:00 PM
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carbon on top of the pistons probably igniting fuel left in there
steve
15-04-2012, 08:48 PM
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Sean, normal conditions. Its just as I have parked up, turned the keys off and it goes "pop" out the backbox
15-04-2012, 08:55 PM
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15-04-2012, 09:02 PM
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as Mr.Teabag asked, EFI car or MFi
you should have NO fuel ignition after turn off with an EFI car, but MFI may still have some (faulty) pressure in the system
but equaly should not have spark to ignite!
Last edited by Cossie Sean; 15-04-2012 at 09:03 PM .
15-04-2012, 09:04 PM
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I'm guessing it's possibly a ford of some kind
15-04-2012, 09:10 PM
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My mfi turbo used to do this when turning it off sometimes..
15-04-2012, 09:29 PM
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Funny mine does this.
Cosworth with l8 msd chip with antilag board and wasted spark.
When i turn it off it either pops or revs up a little.
15-04-2012, 09:53 PM
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seen this a lot with Yd marelli managments, aswell as turning ignition on, firing still ignited fuel even if stood over night............!
15-04-2012, 10:49 PM
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16-04-2012, 11:38 AM
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Bump
Anyone know what causes this on a cossie?
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