Originally Posted by atauri_92
Now I have a flashing EEC, and zero heat. I took out the glove box, and checked the motor that controls the air flow. at 90 its all the way left, and at 60, its all the way to the right (both blowing at max airflow)..
If your ECC is working properly, with the thermostat set at 90*, the arm on the actuator should be all the way RIGHT (right being the passenger side of the car) and at 60* it should move to the extreme left position. Assuming you're getting air blowing out the vents (i.e. the fan is blowing), pull your glove box out and, using a flashlight, look through the peep hole in the black dash brace and watch the actuator arm. There'* an article on www.trialsnuts.com/ecc.pdf
that has some pictures at the end of it that will help you find what you're looking for.
Repeatedly set the heat at max and min and watch the motion of the arm. It should move smoothly and move to the extents of travel consistently. Any irregularities point to a hosed air mix actuator.