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rich condition

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castrolgreen

Member
Joined
Jun 19, 2011
Messages
176
car running rich blm 108 at idle and real high rpms what do you usually expect at idle rpm wise?93 chip
 
that is too low of a blm reading & the chip determines the idle rpm but mostly around 750- 875 or so. Blm should be 120 - 135 ish at idle
 
if you have a vacuum leaks that's gonna give you high BLMs go around and check all your hoses and exhaust

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before trying to adjust things i would fix all my vacuum leaks. with vacuum leaks it will see a lean condition and the ecm will add fuel so you will have high blms i think just by fixing all your vacuum leaks will fix your high blms at idle .it happened to me i had leaks at the vacuum block and cracked header driver side between the 3-5 where they usually crack replaced all my hoses and my blms stay at 128 all the time .before they were topping out at 148 or 158 dont remember exact number .
 
A boost vacuum Gauge would Tell me If my Vacuum is Low Correct& if I may ask My Power Logger Should Read This????Should'nt it???
 
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