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Old 2007-08-21, 06:36 AM   #4
MPREZIV
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Real Name: Le Stig Afrique?
Join Date: Jun 2005
Location: sitting next to a big yellow box
Posts: 3,589
 
Car: 2001 Impreza 2.5 RS
Class: 05 TDSP
 
No, I won't work on your car. F* your car
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Yep, it's me! Yeah, a clogged filter can cause that too. I didn't want to bore you with way too many details, but pretty much anything that will cause the engine to not get enough fuel, or too much air, can cause a lean condition. Anything in the fuel system i.e.: pump, lines, filter, rails, injectors, pressure regualtor. OR, an air or vacuum leak after the air flow meter, thus without the airflow meter being able to tell the ECU exactly how much air is going in, and causing the lean condition.
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