Emissions test comes up not ready - can't pass inspection

Sounds like you have a bad O2 sensor.

Again, TOO LITTLE INFO!!!

could be a non operating oxygen sensor heating, check connector and damaged wiring, as it is posible to damage wiring or connector at this very hot plecement. Amclaussen.

Take it to autozone or another place like it and have them read the codes and tell us what they are.

You may need to replace the ECM

the heater just gets the oxygen sensor working as soon as possible, the quicker it works, the quicker it controls the engine, so it affects emissions and mileage. You can put it off, but it needs to be fixed.

When all the monitors have run their tests then it will pass emmissions providing that your repairs were successfull...You need to drive it for at least 75 miles so that it can complete its tests....

I had a similar problem. My 99 Saturn SL1 would crank and crank but would not start. I'd step on the gas repeatedly when it seemed like it was about to start. I got a new battery, alternator, complete tune up and nothing helped. As an aside, my flunked the emissions test and I had to go to a shop and have it hooked up to a computer for diagnosis. They found many things wrong and I ended up changing the oxygen sensor and the catalitic converter because the mechanic said that these were the most important things to fix so that the car could pass the emissions test. My car passed the emissions test Also I no longer had problems with starting the car. Replace your oxygen sensor.

This is the biggest flaw in emissions testing. It takes 4 tanks of fuel and 1000 miles of wasteful driving to reset the computer on the FORD TAURUS (I've got a 2000). So much for pollution control!

Sounds like you need to replace your oxygen sensors.  If you have a four cylinder I think you only have one oxygen sensor and the six cylinder I know has 2.  You can check that out at your local parts store.  Anyway, the oxygen sensor helps the computers in your car make sure that you are getting the correct amount of fuel and air during combustion thus controlling your emissions.  I would think that if you haven't replace these in a while that is what is probably keeping you from passing your test.  Change the oxygen sensors and put a bottle of good fuel injector cleaner in a full tank of gas and you should be good to go.  I would suggest Greased Lightening fuel injector cleaner that can be purchased at Napa and O'Reilley Auto Parts.  Let me know if you have any other questions.  Thanks for an honest rating and for using FixYa!

TRY DISCONNECTING THE BATTERY CABLE SO THE PCM (COMPUTER) RESETS TO ORIGINAL DEFAULT VALUES. HOPE THIS WORKS FOR YOU. GOOD LUCK