Brera 2.4jtdm idle problem Help!! - Alfa Romeo Forum
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Brera 2.4jtdm idle problem Help!!

Can anyone help me my brera has started to play up on tick over it hunts up and down and becomes very rough on idle also misses a little around 1.5k in revs it only do's this once upto 90C below that it runs perfect also it seems to boost up and and down once it hits 90C but will boost prefect under that temp any ideas anyone Iv replaced the map sensor last wk and its still the same
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Originally Posted by leerobert View Post
Can anyone help me my brera has started to play up on tick over it hunts up and down and becomes very rough on idle also misses a little around 1.5k in revs it only do's this once upto 90C below that it runs perfect also it seems to boost up and and down once it hits 90C but will boost prefect under that temp any ideas anyone Iv replaced the map sensor last wk and its still the same
check the sticky threads. it'll no doubt be egr, maf related. i'll let you know how mine runs after i get her back from having new egr, maf.
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check the sticky threads. it'll no doubt be egr, maf related. i'll let you know how mine runs after i get her back from having new egr, maf.
ok mate keep me informed please
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car seems to idle and rev much better and the fuel consumption has improved.
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i had same problem on idle. Cleaned map, maf and egr to no avail. Found i had leaking swirl flaps which can cause the problem. Decided to clean the throttle body and removed a lot of carbon build up then put a tin of BG244 fuel treatment in the tank.Massive improvement and idle is smooth..for the time being!!..swirl flaps is a big job to delete..but may need doing eventually....
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car seems to idle and rev much better and the fuel consumption has improved.
ok mate thanks for the info i get a tin of that BG244 and try it see what happens after that
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