Ford party air problems

Look at your problem in the air sensor that is located in the admission is below multiple near the IAC. That is your problem does not reach a good sign and makes that fault

Disconnect the air conditioning from the cable that reaches the A/Co engine of the fuse box and performs the tests that you indicated return your vehicle at the speed that the fault presents
if the condition is improved is the cable that feeds the air of the air conditioning
you have to take into account that when activating the air conditioning the fuel consumption is more Factory
do not hesitate to continue consulting
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