Hi all,
My car just failed the AIM test (EPA requirements).
Test showed that the CO level is too high.
Also, I noticed that the car is not running well. It would not take gas at some point. It shocks. I have to remove my foot off the gas pedal in order to get back to normal.
Does the Catalytic converter have anything to do with this?

Any recommendation would be greatly appreciated.
Thanks,
Joey

 

The observation that your car failed the State of Ohio's AIM (automobile inspection and. maintenance) test is somewhat vague. The CO indicator may hint to what's going on. Here are some reasons that may cause it:

Carbon monoxide(CO) failure - exceeds established standards for carbon monoxide

Air to fuel mixture may be too rich.
Idle speed is not correct.
Air filter may be partially clogged.
Choke may not be operating properly.
Positive Crankcase Ventilation (PCV) valve may not be functioning properly.
Air or fuel problems, other equipment or engine malfunctions.
Catalytic converter may be partially clogged or not properly functioning.
Engine oil may be dirty and needs changing.
Various engine sensors may not be functioning.

Yes...............the converter COULD be a contributing factor....

P

 

Thank you for your quick reply.
Is there a way to narrow it down?
or
Is there a way to troubleshoot items on the list that you listed?

Thank you again
Joey

 

I would say start with:

Check/change air filter
Adjust your timing
Clean out your EGR Valves (youll need replacement cork stoppers)
Change O2 sensor/remember when it was last changed
Change Oil

 

Check and make sure the engine's at full operating temp (thermostat's good), and you get it good & hot before you surrender for the inspection. If the engine's cooler that expected, the ECM's going to run it richer to compensate.....

P

 

Yeah man my cousin Bucky worked at the Local Echeck a few years ago before they did away with them here in kentucky.

Drive that car like you stole it for about 10-20 minutes before you take it in.