2005 Ford Mustang Q&A
2005 Ford Mustang Question: erratic guages/failed smog
I have an issue as my 2005 mustang. It failed smog today with the PO4063 error. I have had a check engine light on for a couple of months, the fuel guage and the speedometer guage are both erratic and not accurate. I am taking it in to a mechanic as I need my car, but am really concerned about getting screwed as I have never failed an emissions test and do not know much about them. Any ideas what could be wrong or what is required to correct? Thank you! Edit Your Reply - Visitor
This is pretty common on the 2005 Mustangs, it's caused by failing stepper motors in the instrument cluster, they control the movement of the gauges. There's a guide on how to fix them here - www.2005-mustang-speedometer-problem.com - V8Turbo
I recently posted for help on my 2005 Mustang 6 cyl. I have an engine light that is staying on, I went to auto zone and they ran diagnostic. It shows OEM PO463, says poor electrical connection at t...