Ford Taurus Emissions/Engine light with trouble code

I think the generic scanner is misleading you. P1135 is a manufacturer specific code - i.e., it means different things for different brands of cars. For many manufacturers it is a Fuel System Code, often related to oxygen sensors, but in the case of Ford it translates to "Ignition Switch Signal Missing or Improper." This code isn't applicable to most Fords. Are you sure it is correct? If it was my car, I'd clear the code and see if it comes back.

Ed

How do I clear the code? I assume I disconnect the Battery and connect it again?

Just drive the car 250 miles. If the light doesn't go off, the code is not cleared. You can also take the car to autozone. They should be able to clear the code.

Disconnecting the battery for 10 minutes will clear the code too.

Jeff

I disconnected Batter and it cleared the code and the light went off. Drove it today for around 25 miles and still no light. Hope it stays off but I wonder what would cause the Emissions light to go off like that?

disconnected Batter and it cleared the code and the light went off. Drove it today for around 25 miles and still no light. Hope it stays off but I wonder what would cause the Emissions light to GO ON like it did?

Hundreds to thousands of things. A loose gas cap (which can release hydrocarbons into the air), problems with the catalytic converter, the oxygen and other sensors, ignition parts that need replacement, problems with the transmission, and a hundreds of other problems.

Jeff

Either that or take the vehicle to a competent technician with the proper equipment to analyze the cause of the fault and have it corrected.

An illuminated check engine light indicates the vehicle is operation outside of the microprocessors design parameters, effecting the fuel/air ratio, and thus could be polluting. The problem can be as simply as a bad plug or wire.

mike