changed oxygen sensors, wires, plugs, car runs poorly when warmed up could problem be mass air sensor on 2002 buick lasabrec

Asked by Oct 31, 2013 at 09:41 AM about the 2002 Buick LeSabre Custom Sedan FWD

Question type: Maintenance & Repair

car ran great until recently ran good when i started up after new parts but started running bad and almost stalling when warmed up

1 Answer

25

Check your IAC Valve. Could be bad and causing the bad idle.

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