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I an trying to figure out why this car will run good sitting still

(1990 Oldsmobile Cutlass Supreme)
in Bays, KY on September 05, 2011
and i have put a new ingition modcule on it new coils and an oxygen sensor and now when you try and drive it it will miss and does not seem to have any power it does not have any codes on the computer,it is like it is not getting gas when it is put in gear,as long as you pump the gas it tries to run
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Popular Answer
on September 05, 2011
disconnect the mass air flow sensor and see if it is better. common failure. they had a 100% failure rate in the past.
get the fuel pressure checked as well.

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on September 07, 2011
i have a problem this model doesn't have a mass air flow sensor,we disconnected where the air filter goes and it runs
on September 07, 2011
sorry, the 3.8 has one. anyway, did you have the fuel pressure checked??

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