Question about 1999 Mercury Cougar
I have a 1999 cougar 2.5 litre I have 2 codes po430 and p0420 the car is using alot of fuel, what will cause this. Thank you.
Failed or faulty oxygen sensor, or faulty catalytic converter. It's actually the oxygen sensor reading that the catalytic converter is not functioning properly & needs relacement. That's provided the oxygen sensor is not faulty, which personally, I'd go for that first.
Both would explain excessive fuel usage.
Posted on Jan 25, 2009
Where is the fuel setting device located
Posted on Feb 01, 2009
if you go to your public library they can give you the car repair manual to use and it will have to diagnostic codes listed, if that is any help to you, but i need to know what size tires are on that car. i just bought one and it needs tires badly, and i am not sure that the tires on it are right.
Posted on Jan 24, 2009
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Posted on Jan 02, 2017
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