To better answer the question, appreciate to have the codes. Having the code make it easy to know what system is at fault and before we can get tp the component.
Changing oxygen sensor, EGR valve or catalytic converter may not help at all.
What is interested is the dirty black gas when changing the fuel filter, and the 340000 milleage on the car
Black gas from the fuel filter mean there is more black gas in the tank/contaminated fuel.
Ran close to empty then add dry gas and fill the tank up. If you were using 87, then this time only use the next 90 .I know gas is expensive, so I do not mean to make you broke.( Resett the light)
meanwhile, have them scan the corsica again if the engine light come back, write it down, and get back to me.
Sunday, October 4th, 2009 AT 5:40 AM