5.7 hesitation - Team Camaro Tech
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post #1 of 1 (permalink) Old Dec 18th, 06, 08:44 PM Thread Starter
Join Date: Dec 2006
Location: mayer az.
Posts: 1
5.7 hesitation

i have a 99 ss with a 5.7. it has a hesitation("stumble") on acceleration. o-2 sensors are new, plugs are good, fuel pressure is within specs, sets codes 0137 and 0157- low voltage on both post cat 0-2 sensors(lean mixture). im stumped! any ideas?
rebwrench55 is offline  
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