The setup
I was going to take this on an overnight trip Friday. It was last run last Sunday. I got out to start it and the battery was pretty hard flat - under 6V. I put a little charge on it and it started right up - with the check engine light on. I plugged in my cheap wifi dongle ODBII interface and freebie software and it won’t connect to the ECU. It worked fine in the past. Gave up and took another vehicle.
The Symptom
Got back today, and the battery was flat again. Charged it for a while and it started ticking every second or two. Disconnected the battery and let it charge for an hour - and left the vehicle disconnected for that time. Connected the battery back up and it started ticking again. Isolated the ticking to the indicated housing on the intake. Unplugged and the ticking went away. Vehicle won’t start with it disconnected, but when connected starts, but seems to have a little trouble idling.
I believe this beast is throttle body injection, this is the throttle body butterfly, and that the issue is likely a dead sensor. I have the Ford shop manuals and will dig through them tonight. I plan to come to DMS and try and read the ECU codes tomorrow (Sunday.) Hopefully the Autel will do the deed and be enlightening.
I want to take this on a long trip in a month, so I need to get it stable pretty soon. Probably need a battery as well given the abuse it’s gotten.
I’ll take and appreciate any advice I can get.