Can a code reader be left connected while the car is being driven?
2013 Fiesta SE 30,000 miles reports engine needs maintenance but when I bring it in to have code read, there is no longer a code reported. Can the code reader be connected if I leave the engine running while the message is still being displayed?
There is something wrong. Usually happens when I turn on the cruise control. I get no throttle response until I push the throttle further in. Feels like when a carburetor circuit is not good on an old car. The car really decelerates when I let of the throttle. Idle is fine.
This happened a few months ago. Never could get a code read. The problem finally went away after a few days. It just came back. I think the throttle is by wire (electrical). I suspect the throttle unit is going out, or there is a bad connection between it and engine management. I am considering buying my own code reader if I can keep it connected until the problem occurs.
2013 Fiesta SE 30,000 miles reports engine needs maintenance but when I bring it in to have code read, there is no longer a code reported. Can the code reader be connected if I leave the engine running while the message is still being displayed?
There is something wrong. Usually happens when I turn on the cruise control. I get no throttle response until I push the throttle further in. Feels like when a carburetor circuit is not good on an old car. The car really decelerates when I let of the throttle. Idle is fine.
This happened a few months ago. Never could get a code read. The problem finally went away after a few days. It just came back. I think the throttle is by wire (electrical). I suspect the throttle unit is going out, or there is a bad connection between it and engine management. I am considering buying my own code reader if I can keep it connected until the problem occurs.