Have a manual pick up that hesitates and or seems like it is gasping for gas. on 1994 Mazda B4000

The problem gets worse with less than 1/2 of a tank of gas. Have already had both oxygen sensors replaced and fuel pump checked.This occurs everytime its driven and has been a problem for a long time.

by in Portland, OR on September 16, 2013
3 answers 2 comments
ANSWER by on September 17, 2013
check your fuel pressure and replace fuel filter
ANSWER by on September 17, 2013
Any trouble codes?
COMMENT by on September 17, 2013
What is a trouble code? and what will it tell us?
COMMENT by on September 18, 2013
Is the check engine light on? If so there will be trouble codes stored in the computer's memory. You can have a scan test performed to see what these codes are to aid in diagnosing the problem.
ANSWER by on September 17, 2013
agree with both

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