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tecate87
10-06-09, 07:09 PM
94 chevy truck 5 speed, vortec 4.3 v6 engine.

truck is running rich, has new air filter, plugs.
What can be causing this ???

DIRTWRKZ
10-06-09, 07:38 PM
1st what has lead you to the "running rich" conclusion?
check engine light on?

things to check;
map sensor, o2 sensors, fuel pressure regulator