mustanghobby

i threw 0171 bank 1 to lean and 0174 bank 2 to lean. does anybody know what is causing these? i have H.O whipple, longtubes no cats. ive been running this way for over a 1000 miles with no problems or codes until now.the rear 02 sensors r turned off in the tune. any help would be appreciated. thanks...

hammeron

hey hobby, check for unmetered air, getting into the
intake manifold

157dB

http://iihs.net/fsm/?dir=10&viewfile...scriptions.pdf

mustanghobby

Hammeron thanks i think i found the problem...

hammeron

cool.....when you are sure you nailed
it, let me know what it was