1992 Buick Regal Limited 6 Cyl 3.80L
i think it's a sensor but not sure which one or what type,but need to replace
Becoming hard to start,running rough;missing;did all around tune up last year. Spark plugs,wires,fuel filter,air filter,oil,oil filter transmission etc
First step - have the stored fault codes or check engine light scanned - for free - at any local auto parts store; Advance Auto, Auto Zone, NAPA. Then, post a reply as 'add answer' with the specific code for more assistance.