Idle speed CO 1.29% Greater than 1.20%

High speed CO 2.62% Greater than 1.20%

Idle speed HC 278 Greater than 220 parts per million




Any ideas what i need to do thanx

 

similar problem that I had last week.

Very possible that your cat converter is clogged and the O2 sensor is reading b**x

Get yourself some Cat Cleaner (I had CATACLEAN) just two bottles of them in the tank with only 15 to 25 liters of super unleaded petrol and good spark plagues and of course new air filter - just run it on the highway/motorway for good 1/2 an hour and take it straight to test center. just make sure you don't switch off the engine while you are waiting for the test. Engine should be HOT HOT HOT!

hope this helps you,

 

Put a new o2 sensor in passed smog. Now the cars has a lot of white smoke coming out of the tailpipe seems to be burning coolant. Before, the o2 sensor I replaced the head gasket. Any ideas Thanx

 

Get an engine leak down kit..AutoZone...about $60.00..it will help you find your leak in engine..ask one of their counter people where it's at on the shelf...