My wife went to get her car tested and it failed on the part that says CO % the limit is 0.37 and the reading was 0.68. Its a 97 automatic sunfire. If anyone has any suggestion as to what to look at that would be great. Thanks
i forgot to mention, check the one after the cat
does the one after the cat effect smog at all other then if it triggers cel of course i thought it just monitored the cat ect
The one after cat, is nothing more than an efficency indicator. I will post later tonight a list of problem that can cause high CO.
- 2004 Cavalier - 124k, owned since new
If you want to pass it no problem, run your tank to about 1/4 tank, then dump in about 1-2 litres of alcohol(gas line antifreeze) and it should pass. It'll run hotter and burn cleaner, but don't drive it long like this, you'll cook your motor after a long time. and try the O2 sensor
1996fire wrote:If you want to pass it no problem, run your tank to about 1/4 tank, then dump in about 1-2 litres of alcohol(gas line antifreeze) and it should pass. It'll run hotter and burn cleaner, but don't drive it long like this, you'll cook your motor after a long time. and try the O2 sensor
Your a @!#$ moron.
Anymore than the normal 10% alchol content in the gasoline is bad for the car. Also adding ANYTHING at all to your tank, HEET, cleaner, this BS and that BS just increases the alchol content. Alchol content higher than 10% is the #1 cause of fuel pump failure.
Secondly it wont burn cleaner, it will actually run worse, because the volitility factor in the gas has been changed.
See if you had more than a 8th grade education you would actually know something.
High CO content caused by rich condition
high fuel pressure
leaky fuel injectors
faulty input to the computer
ECT faulty
thermostat stuck open
plugged air filter, or any restriction
fuel saturated crankcase
hope that helps
- 2004 Cavalier - 124k, owned since new
