Honda Check Engine Light Error Codes 0 ECU 1 Oxygen Sensor 3 Map Sensor 5 Map Sensor 6 Crank Angle 7 Throttle Angle 8 TDC Position 9 No.When your car's 'Ford Focus P1934 Check Engine' light comes on, it's usually accompanied by a sinking feeling You can find a list of error codes for the make and model of your car online by doing a simple search. I was worried that I might have to pull over to the side of the road when I saw the light or get it to a mechanic ASAP, but now I know that it's not life threatening to the car and that it's OK if I get it looked at the next time I am at my mechanic. Having a broken EGR is relatively common on a high mileage car (I have 180,000 miles on mine) and it's a pretty easy fix. This is the system that sends some of the engine's exhaust into the cylinder to cool the combustion process and keep temps in the cylinders down. Code 12 indicates a problem with my EGR system. My light was blinking once for a long time, and then twice for a short time. Long blinks mean '10' and short blinks mean '1'. The light is blinking in a simple code of long and short. You should see it start to light up in a series of flashes. Wait a second and keep your eye on the check engine light. With the wire in place, put the key in the ignition and put the car into the 'run' position. For the full instructions check out the following steps. Here is a short video explaining the code deciphering process. This should be true for many cars made before 1996. Again, this instructable is only useful for people who have cars that report engine trouble via a flashing check engine light. You can bridge a set of wires in your car and send the cars computer into its error reporting mode so that you can find out whats wrong with your car. The specific error or failing part could be one of many different things that the computer senses for. The dreaded check engine light comes on while you are driving only to signify that there is a problem. Before 1996 however, cars reported their errors from the computer themselves via a flashing code from the check engine light. After 1996 all cars were made to hook up to an external error code reader.

You can pay a mechanic a bunch of money to read your car's error codes when your check engine light comes on, or you can grab a paper clip and read the codes yourself.

Ford engine codes printable