very rough cold start idle. I have to pump the gas to keep it from stalling; and the car automatically revs as well to keep the engine from stalling. "Check engine" light stays on. I
1996 Buick Century very rough cold start idle. I have to pump the gas to keep it
from stalling; and the car automatically revs to keep the engine from stalling.
"Check engine" light stays on . I've replaced the oxygen sensor and a leaky
hose to the air filter, which has helped some. I've considered a tune up; but
could a bad fuel filter be the main problem?