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half boost when hot
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Old 05 Jun 2011, 09:41 AM   #1 (permalink)
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Join Date: Jun 2011
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half boost when hot

hi there, i have an impreza wrx fitted with an sti v2 engine and it has a fmic with hks mushroom filter, the car has always run at 1.3 bar of boost but this week it will be running fine but then it will drop to half the boost about 0.6 to 0.7 it seems to be when it gets really hot after driving for a while but leave for a few hours and it will be ok again does anyone have any ideas any help would be very help full
cheers
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Old 09 Jun 2011, 01:10 PM   #2 (permalink)
Fresh Scooby
 
Join Date: Oct 2010
Location: Essex
Posts: 26
Re: half boost when hot

hi there,

Could be a number of things, probably sensor related. Gearbox sensor, lamda but more than likely the MAF - similar problems to me albeit mine is not as heavily modded!
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