I have a 2007 F150 4.2 v6 xlt. replaceed the spark plugs, wires, coil computer.
thottle body then took to ford they replaced the thottle body and pigtail and now
the code P2135 comes up on the code reader. wrench lite comes on and the
truck goes into limp mode. I can usually clear by a couple of methods: turning
off the engine, disconnecting the battery, clearing the code, or clearing the
computer (PCM). This is usually a quick fix, but the problem keeps coming back.