Why did my check engine light come on again?
About two or three months after the catalytic convert was replaced the check engine light came on again. This is around the time I asked for an OBD-II code scanner for Christmas. The same “P0240” trouble code was being stored in the engine control module.
Where do I find the Check Engine Light code?
Then, press the “read” button on the scanner to access the check engine light code. The code will be a series of letters and numbers. Record all of the codes so you can figure out what they represent and make the necessary repairs to your vehicle.
How to diagnose check engine light, emissions and oxygen?
As a Master Certified Technician, I am fortunate enough to be provided with routine manufacturer training which allows me to stay current on all aspects of check engine light and trouble code diagnosis. I also, apparently much like you, do a lot of online research, looking to see what kinds of problems and solutions are currently being addressed.
What’s the trouble code on my Chevy Impala?
I drive a 2002 Chevy Impala and the check engine light has been coming on for about 4 years. The trouble code is “P0420”. That means the catalytic converter is functioning below the normal efficiency levels.
What does the error code p1166 stand for?
Error Code P1166 points to a problem in the heater circuit, possibly there is no voltage to the heater, or the heater is bad in the sensor. To diagnose, plug the sensor red pin (pin 2) and blue pin (pin 1) to the heater circuit. On the harness side, there must be 12V within 80 seconds of engine start.
How to diagnose service engine light for free?
Check engine light on? Here is how to use an OBD-II scanner for free to diagnose the service engine light & save money vs a mechanic fee. Menu Home About About Contact Categories Investing Banks CDs Dividends ETFs Finance Guru Commentary Index Funds Inflation Market Terminology Mutual Funds Stocks Wall Street News Lifestyle Finance Biking Donating
What is the error code for a heater?
Error Code P1166 is described as Air/Fuel Ratio Sensor 1 Heater Circuit Malfunction.
Can a check engine light go off by itself?
Will the check engine light go off by itself? Yes, The check engine light will reset itself after a fixed amount of time if you fixed the problem in most car models. Usually, this is 10-30 cycles. One cycle is from a cold start until the engine is at working temperature.