Engine Performance problem
1999 Subaru Legacy 4 cyl All Wheel Drive Manual 200k miles
I failed the idling portion of the CA/smog; co's were at 10 (gross polluter), and then had 02sensor pre catalitic converter replaced and that brought it down to just over 2 (CA requires below 2). Mechanic says he now believes it is the mass air flow sensor but cannot guaantee. We changed plugs/wires and still the intermitant hesitation upon exceleration is a problem. Your advise would be appreciated as this part is very expensive new and I'm afraid to take a chance on a used part because somewhere I read that this was a problem subaru experienced with this year.
have the same problem?
Thursday, August 6th, 2009 AT 2:00 PM