BL is at 140 at idle

Joined
Jan 31, 2006
while the car is warm.
BL at 140 at idle and 119 under part light throttle
Exhaust leak??
vacuum leak??
Is 140 adding fuel?
thanks for the help
 
Correct, high BLM means it's adding fuel to compensate. Could be a vacuum leak, or even a MAF sensor that is going bad. My BLM at idle is also 140. I swapped MAF sensors and it dropped to 127.
 
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