I am running out of ideas on what is wrong with my air charge sensor problem. About 6 months ago, on a night when it was extremely cold, the light cut on. I tried disabling it with the quarterhorse and let it ride until now. Here is a timeline of what has happened:
6 months ago: the cel cut on and gave a code 54.
7 days ago: I ordered an oem ford sensor
Yesterday: installed the sensor and still had a code 54
Today: Cleaned and widened the pins on the salt and pepper 10 pin connectors. Took a multimeter and checked for voltage on the act plug unplugged. It had 4.56 volts. I also checked the other wire on the plug by seeing if it made a circuit with the ground on the battery. It gave a reading of 34 when i checked it.
I made sure I had the scaler cut back on that I cut off in the tune and flashed the computer. The light went off when I cranked it, but the act reading was -6 degrees. I got out and unplugged the sensor and nothing changed. still no light, and my datalogger was reading -6 to -8 degrees.
Anyone have any ideas?
93 lx convrt. 5-speed, stock shortblock, afr 165s, eddy performer intake, custom cam, vortech sci.