Pull a couple and see what they look like. Compare them with the plugs at the following link. Post findings...
Also, could be a clogged or partially clogged Cat. Should have it checked or if you have a pocket IR thermometer laser temperature reader you can do the following....
Check the exhaust system for blockage. A plugged catalytic converter can cause low engine power by not allowing the engine exhaust to exit the engine properly. To check for this condition take your car for a 15 minute drive allowing the exhaust system to warm, park the car safely and use a pocket IR thermometer laser temperature reader to measure the temperature the exhaust pipe entering the catalytic converter and the exhaust pipe leaving. The temperature should be lower going into the catalytic converter and hotter leaving the catalytic converter.
Example: the temperature entering the catalytic converter is 300 degrees and exiting the catalytic converter is 450 degrees. This means the catalytic converter is working properly, if the temperature is the same or lower the catalytic converter is not working and is probably plugged.
Tuesday, March 24th, 2009 AT 5:50 PM