1983 Chevrolet Silverado "causes high co emissions" Questions

...causes high co percentage in emission test Measured in percent, this is the result of incomplete combustion. In other words, the fuel mixture has been compressed and ignited, but could not complete ...

...CO is one of the gases they measure. If the level is too high .. your car fails the emissions test. I believe in the USA the emissions test is known as the 'smog test'? If you have a problem with ...

...High speed HC 333 CO 3.75 Low speed HC 406 CO 0.07. I ran about 5-6 tanks of gas through it using lucas fuel system cleaner every other tank and changed the fuel filter twice. I replaced the ...

...high emissions mot results co 5.508 % hc,s 250 on idle Replace your oxygen sensors.               murf427 Help please guys Low ...

...high co emissions what to check to lower this reading Have the 02 sensors checked. high co is caused by an overly rich mixture. this is affected by many things such as: needs oil change (this does ...

...CO % Low High Low High Reading 245 443 3.27 10.02 Limit 220 220 1.20 1.20 Was told to get it tuned up. What would cause these problems? And can it be fixed/tuned up by a novice DIY mechanic? Emission ...

...causes of a high CO count could be one of the following; High fuel pressure (constricted filter, pinched line, etc) Ruptured pressure regulator diaphragm Malfunctioning Evaporative Emissions System ...

...high CO reading. The o2 sensors are reading high and not moving much. I replaced one but it made no differance. What could cause this? change the level of octane to a higher grade before you get your ...

...CO? High compresson can be caused by combustion chamber deposits. If you do a lot of around town driving, it's possible there are deposits that have built up enough to cause a problem. A combustion ...

...CO(%) high? High HC means its running rich, high CO usually means your Catalytic converter is clogged or inefficient. There are many reasons for this but in my experience the main one is a faulty O2 ...